diff --git a/cross/cross_class.php b/cross/cross_class.php
index 75dea5c..faddfd6 100644
--- a/cross/cross_class.php
+++ b/cross/cross_class.php
@@ -574,7 +574,7 @@ class Cross
      * @param array $words
      * @param object $magics
      * @param object $poss
-     * @param int $ccrosspos
+     * @param int $crosspos
      * @param int $crossdir
      * @param object $crosssword
      * @param int $n20
diff --git a/cross/crossdb_class.php b/cross/crossdb_class.php
index fe77e59..9d4abbc 100644
--- a/cross/crossdb_class.php
+++ b/cross/crossdb_class.php
@@ -29,8 +29,9 @@ defined('MOODLE_INTERNAL') || die();
 /*
  * This class is a cross that can load and save to a table
  *
- * @author  bdaloukas
- * @package game
+ * @package mod_game
+ * @copyright 2007 Vasilis Daloukas
+ * @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  **/
 class CrossDB extends Cross {
     /**
@@ -91,7 +92,7 @@ class CrossDB extends Cross {
     /**
      * Load cross.
      *
-     * @param $g
+     * @param string $g
      * @param boolean $done
      * @param string $html
      * @param stdClass $game
@@ -173,7 +174,7 @@ class CrossDB extends Cross {
      *
      * @param int $correctletters
      * @param int $wrongletters
-     * @param $restletters
+     * @param string $restletters
      * @param stdClass $game
      * @param stdClass $attempt
      * @param boolean $done
@@ -241,8 +242,8 @@ class CrossDB extends Cross {
      * Update cross questions.
      *
      * @param stdClass $rec  (is a record of cross_questions).
-     * @param $g
-     * @param $pos
+     * @param string $g
+     * @param int $pos
      * @param int $correctletters
      * @param int $wrongletters
      * @param int $restletters
diff --git a/cryptex/cryptexdb_class.php b/cryptex/cryptexdb_class.php
index 6b20c53..3779a0e 100644
--- a/cryptex/cryptexdb_class.php
+++ b/cryptex/cryptexdb_class.php
@@ -166,10 +166,10 @@ class CryptexDB extends CrossDB {
     /**
      * Inserts a char.
      *
-     * @param $letters
-     * @param $cols
-     * @param $rows
-     * @param $char
+     * @param string $letters
+     * @param int $cols
+     * @param int $rows
+     * @param string $char
      * @param int $spaces
      */
     public function insertchar( &$letters, $cols, $rows, $char, &$spaces) {
@@ -186,10 +186,10 @@ class CryptexDB extends CrossDB {
     /**
      * Inserts chars.
      *
-     * @param $letters
-     * @param $cols
-     * @param $rows
-     * @param $char
+     * @param string $letters
+     * @param int $cols
+     * @param int $rows
+     * @param string $char
      * @param int $spaces
      */
     public function insertchars( &$letters, $cols, $rows, $char, &$spaces) {
@@ -234,9 +234,9 @@ class CryptexDB extends CrossDB {
      * Loads the cryptex from database.
      *
      * @param array $crossm
-     * @param $mask
-     * @param $corrects
-     * @param $language
+     * @param string $mask
+     * @param int $corrects
+     * @param string $language
      *
      * @return questions
      */
@@ -288,9 +288,9 @@ class CryptexDB extends CrossDB {
     /**
      * Calls the setwords of class Cross.
      *
-     * @param $answers
-     * @param $maxcols
-     * @param $reps
+     * @param string $answers
+     * @param int $maxcols
+     * @param array $reps
      *
      * @return Cross::setwords
      */
@@ -301,12 +301,12 @@ class CryptexDB extends CrossDB {
     /**
      * Calls the computedata of class Cross.
      *
-     * @param $crossm
-     * @param $crossd
-     * @param $letters
-     * @param $minwords
-     * @param $maxwords
-     * @param $mtimelimit
+     * @param stdClass $crossm
+     * @param stdClass $crossd
+     * @param string $letters
+     * @param int $minwords
+     * @param int $maxwords
+     * @param int $mtimelimit
      */
     public function computedata( &$crossm, &$crossd, &$letters, $minwords, $maxwords, $mtimelimit=3) {
         if (!cross::computedata( $crossm, $crossd, $letters, $minwords, $maxwords, $mtimelimit)) {
diff --git a/cryptex/play.php b/cryptex/play.php
index cb03ed4..cd8d1a4 100644
--- a/cryptex/play.php
+++ b/cryptex/play.php
@@ -28,11 +28,11 @@ require_once( "cryptexdb_class.php");
 /**
  * Plays the game cryptex.
  *
- * @param $id
+ * @param int $id
  * @param stdClass $game
  * @param stdClass $atttempt
- * @param $cryptexrec
- * @param $endofgame
+ * @param stdClass $cryptexrec
+ * @param boolean $endofgame
  * @param stdClass $context
  */
 function game_cryptex_continue( $id, $game, $attempt, $cryptexrec, $endofgame, $context) {
@@ -115,10 +115,10 @@ function game_cryptex_continue( $id, $game, $attempt, $cryptexrec, $endofgame, $
  * @param int $id
  * @param stdClass $game
  * @param stdClass $atttempt
- * @param $cryptexrec
- * @param $q (The q means game_queries.id).
- * @param $answer
- * @param $finishattempt
+ * @param stdClass $cryptexrec
+ * @param int $q (The q means game_queries.id).
+ * @param stdClass $answer
+ * @param boolean $finishattempt
  * @param stdClass $context
  */
 function game_cryptex_check( $id, $game, $attempt, $cryptexrec, $q, $answer, $finishattempt, $context) {
@@ -171,8 +171,8 @@ function game_cryptex_check( $id, $game, $attempt, $cryptexrec, $q, $answer, $fi
  * @param int $id
  * @param stdClass $game
  * @param stdClass $atttempt
- * @param $cryptexrec
- * @param $crosssm
+ * @param stdClass $cryptexrec
+ * @param stdClass $crosssm
  * @param boolean $updateattempt
  * @param boolean $onlyshow
  * @param boolean $showsolution
@@ -408,7 +408,7 @@ if ($print) {
  * @param int $id
  * @param stdClass $game
  * @param stdClass $atttempt
- * @param $cryptexrec
+ * @param stdClass $cryptexrec
  */
 function game_cryptex_onfinished( $id, $game, $attempt, $cryptexrec) {
     global $CFG, $DB;
diff --git a/db/access.php b/db/access.php
index bd40a9a..c8c6071 100644
--- a/db/access.php
+++ b/db/access.php
@@ -14,7 +14,7 @@
 // You should have received a copy of the GNU General Public License
 // along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
 
-/*
+/**
  * Plugin capabilities
  *
  * @package    mod_game
diff --git a/db/importsnakes.php b/db/importsnakes.php
index 6839df5..9b90cba 100644
--- a/db/importsnakes.php
+++ b/db/importsnakes.php
@@ -71,7 +71,7 @@ function game_importsnakes() {
 /**
   * Insert one board to database
   *
-  * @param $newrec
+  * @param stdClass $newrec
   */ 
 function game_importsnakes_do( $newrec) {
     global $DB;
diff --git a/export/exporthtml_millionaire.php b/export/exporthtml_millionaire.php
index 39fa81f..e9def0e 100644
--- a/export/exporthtml_millionaire.php
+++ b/export/exporthtml_millionaire.php
@@ -112,8 +112,8 @@ function game_millionaire_html_getquestions( $game, $context, &$maxanswers, &$co
  * Exports to html a "Millionaire" game.
  *
  * @param stdClass $game
- * @param $questions
- * @param $maxquestions
+ * @param string $questions
+ * @param int $maxquestions
  */
 function game_millionaire_html_print( $game,  $questions, $maxquestions) {
     $color1 = 'black';
diff --git a/export/exportjavame.php b/export/exportjavame.php
index ac50991..886fb14 100644
--- a/export/exportjavame.php
+++ b/export/exportjavame.php
@@ -28,7 +28,7 @@ defined('MOODLE_INTERNAL') || die();
  * Exports to javame.
  *
  * @param object $game
- * @param $javame
+ * @param object $javame
  */
 function game_onexportjavame( $game, $javame) {
     global $CFG, $DB;
@@ -97,12 +97,12 @@ function game_onexportjavame( $game, $javame) {
 /**
  * Exports data.
  *
- * @param $src
- * @param $destmobiledir
- * @param $destdir
- * @param $game
- * @param $maxwidth
- * @param $maxheight
+ * @param string $src
+ * @param string $destmobiledir
+ * @param string $destdir
+ * @param stdClass $game
+ * @param int $maxwidth
+ * @param int $maxheight
  */
 function game_exportjavame_exportdata( $src, $destmobiledir, $destdir, $game, $maxwidth, $maxheight) {
     global $CFG;
@@ -157,13 +157,13 @@ function game_exportjavame_exportdata( $src, $destmobiledir, $destdir, $game, $m
 /**
  * Exports data of hangman with pictures.
  *
- * @param $src
- * @param $destmobiledir
- * @param $destdir
- * @param $game
- * @param $map
- * @param $maxwidth
- * @param $maxheight
+ * @param string $src
+ * @param string $destmobiledir
+ * @param string $destdir
+ * @param stdClass $game
+ * @param array $map
+ * @param int $maxwidth
+ * @param int $maxheight
  */
 function game_exportjavame_exportdata_hangmanp( $src, $destmobiledir, $destdir, $game, $map, $maxwidth, $maxheight) {
     global $CFG;
@@ -194,11 +194,11 @@ function game_exportjavame_exportdata_hangmanp( $src, $destmobiledir, $destdir,
 /**
  * Exports to javame.
  *
- * @param $game
- * @param $context
- * @param $exportattachments
- * @param $dest
- * @param $files
+ * @param stdClas $game
+ * @param stdClass $context
+ * @param boolean $exportattachments
+ * @param string $dest
+ * @param array $files
  */
 function game_exmportjavame_getanswers( $game, $context, $exportattachment, $dest, &$files) {
     $map = array();
@@ -219,10 +219,10 @@ function game_exmportjavame_getanswers( $game, $context, $exportattachment, $des
 /**
  * Exports to javame.
  *
- * @param $game
- * @param $context
- * @param $destdir
- * @param $files
+ * @param stdClass $game
+ * @param stdClass $context
+ * @param string $destdir
+ * @param array $files
  */
 function game_exmportjavame_getanswers_question( $game, $context, $destdir, &$files) {
     $select = 'hidden = 0 AND category='.$game->questioncategoryid;
@@ -236,10 +236,10 @@ function game_exmportjavame_getanswers_question( $game, $context, $destdir, &$fi
 /**
  * Exports to javame.
  *
- * @param $game
- * @param $context
- * @param $destdir
- * @param $files
+ * @param stdClass $game
+ * @param stdClass $context
+ * @param string $destdir
+ * @param array $files
  */
 function game_exmportjavame_getanswers_quiz( $game, $context, $destdir, $files) {
     global $CFG;
@@ -256,14 +256,14 @@ function game_exmportjavame_getanswers_quiz( $game, $context, $destdir, $files)
 /**
  * Exports to javame.
  *
- * @param $game
- * @param $context
- * @param $table
- * @param $select
- * @param $fields
- * @param $courseid
- * @param $destdir
- * @param $files
+ * @param stdClass $game
+ * @param stdClass $context
+ * @param string $table
+ * @param string $select
+ * @param string $fields
+ * @param int $courseid
+ * @param string $destdir
+ * @param array $files
  */
 function game_exmportjavame_getanswers_question_select( $game, $context, $table, $select, $fields, $courseid, $destdir, &$files) {
     global $CFG, $DB;
@@ -302,11 +302,11 @@ function game_exmportjavame_getanswers_question_select( $game, $context, $table,
 /**
  * Exports to javame.
  *
- * @param $game
- * @param $context
- * @param $exportattachments
- * @param $destdir
- * @param $files
+ * @param stdClass $game
+ * @param stdClass $context
+ * @param boolean $exportattachments
+ * @param string $destdir
+ * @param array $files
  */
 function game_exmportjavame_getanswers_glossary( $game, $context, $exportattachment, $destdir, &$files) {
     global $CFG, $DB;
@@ -388,9 +388,9 @@ function game_exmportjavame_getanswers_glossary( $game, $context, $exportattachm
 /**
  * Create manifest mf.
  *
- * @param $dir
- * @param $javame
- * @param $destmobiledir
+ * @param string $dir
+ * @param stdClass $javame
+ * @param string $destmobiledir
  */
 function game_create_manifest_mf( $dir, $javame, $destmobiledir) {
     $fp = fopen( $dir.'/MANIFEST.MF', "w");
@@ -411,9 +411,9 @@ function game_create_manifest_mf( $dir, $javame, $destmobiledir) {
 /**
  * Creates a jar file.
  *
- * @param $srcdir
- * @param $course
- * @param $javame
+ * @param string $srcdir
+ * @param stdClass $course
+ * @param stdClass $javame
  */
 function game_create_jar( $srcdir, $course, $javame) {
     global $CFG;
@@ -463,9 +463,9 @@ function game_showanswers_appendselect( $form) {
 /**
  * Copy images
  *
- * @param $filename
- * @param $dest
- * @param $maxwidth
+ * @param string $filename
+ * @param string $dest
+ * @param int $maxwidth
  */
 function game_export_javame_smartcopyimage( $filename, $dest, $maxwidth) {
     if ($maxwidth == 0) {
diff --git a/hangman/play.php b/hangman/play.php
index 1c0b46f..5f2d784 100644
--- a/hangman/play.php
+++ b/hangman/play.php
@@ -325,7 +325,7 @@ function game_hangman_play( $id, $game, $attempt, $hangman, $onlyshow, $showsolu
  * @param boolean $correct
  * @param boolean $wrong
  * @param int $max
- * @param string wordline
+ * @param string $wordline
  * @param string $wordline2
  * @param array $links
  * @param stdClass $game
diff --git a/hiddenpicture/picture.php b/hiddenpicture/picture.php
index e213381..e8c5406 100644
--- a/hiddenpicture/picture.php
+++ b/hiddenpicture/picture.php
@@ -39,14 +39,14 @@ create_image( $id, $attemptid, $foundcells, $cells, $filehash, $cols, $rows, $fi
 /**
  * Create an image.
  *
- * @param $id
- * @param $attemptid
- * @param $foundcells
- * @param $cells
- * @param $filehash
- * @param $cols
- * @param $rows
- * @param $filenamenumbers
+ * @param int $id
+ * @param int $attemptid
+ * @param boolean $foundcells
+ * @param stdClass $cells
+ * @param string $filehash
+ * @param int $cols
+ * @param int $rows
+ * @param string $filenamenumbers
  */
 function create_image( $id, $attemptid, $foundcells, $cells, $filehash, $cols, $rows, $filenamenumbers) {
     global $CFG;
@@ -123,14 +123,14 @@ function create_image( $id, $attemptid, $foundcells, $cells, $filehash, $cols, $
 /**
  * Show number.
  *
- * @param $imghandle
- * @param $imgnumbers
- * @param $number
- * @param $x1
- * @param $y1
- * @param $width
- * @param $height
- * @param $sizenumbers
+ * @param object $imghandle
+ * @param object $imgnumbers
+ * @param int $number
+ * @param int $x1
+ * @param int $y1
+ * @param int $width
+ * @param int $height
+ * @param int $sizenumbers
  */
 function shownumber( $imghandle, $imgnumbers, $number, $x1 , $y1, $width, $height, $sizenumbers) {
     if ($number < 10) {
diff --git a/lib.php b/lib.php
index 9920cf3..2f375e5 100644
--- a/lib.php
+++ b/lib.php
@@ -181,7 +181,7 @@ function game_before_add_or_update(&$game) {
 /**
  * Given an ID of an instance of this module, this function will permanently delete the instance and any data that depends on it.
  *
- * @param int $id Id of the module instance
+ * @param int $gameid Id of the module instance
  * @return boolean Success/Failure
  **/
 function game_delete_instance($gameid) {
@@ -358,7 +358,7 @@ function game_grades($gameid) {
 /**
  * Return grade for given user or all users.
  *
- * @param int $gameid id of game
+ * @param stdClass $game
  * @param int $userid optional user id, 0 means all users
  * @return array array of grades, false if none
  */
@@ -393,6 +393,7 @@ function game_get_participants($gameid) {
  * This function returns if a scale is being used by one game it it has support for grading and scales.
  *
  * @param int $gameid ID of an instance of this module
+ * @param int $scaleid
  * @return mixed
  * @todo Finish documenting this function
  **/
@@ -407,6 +408,7 @@ function game_scale_used ($gameid, $scaleid) {
  *
  * @param object $game null means all games
  * @param int $userid specific user only, 0 mean all
+ * @param boolean $nullifnone
  */
 function game_update_grades($game=null, $userid=0, $nullifnone=true) {
     global $CFG;
@@ -454,7 +456,7 @@ function game_update_grades($game=null, $userid=0, $nullifnone=true) {
  * Create grade item for given game
  *
  * @param object $game object with extra cmidnumber
- * @param mixed optional array/object of grade(s); 'reset' means reset grades in gradebook
+ * @param stdClass $grades
  * @return int 0 if ok, error code otherwise
  */
 function game_grade_item_update($game, $grades=null) {
@@ -516,10 +518,10 @@ function game_grade_item_delete( $game) {
  * @param stdClass $activities
  * @param int $index
  * @param int $timestart
- * @param int courseid
- * @param int cmid
- * @param int userid
- * @param int groupid
+ * @param int $courseid
+ * @param int $cmid
+ * @param int $userid
+ * @param int $groupid
  */
 function game_get_recent_mod_activity(&$activities, &$index, $timestart, $courseid, $cmid, $userid=0, $groupid=0) {
     global $DB, $COURSE, $USER;
@@ -621,7 +623,7 @@ function game_get_recent_mod_activity(&$activities, &$index, $timestart, $course
  * @param stdClass $activity
  * @param int $courseid
  * @param stdClass $detail
- * @param array $modgames
+ * @param array $modnames
  */
 function game_print_recent_mod_activity($activity, $courseid, $detail, $modnames) {
     global $CFG, $OUTPUT;
@@ -662,7 +664,7 @@ function game_print_recent_mod_activity($activity, $courseid, $detail, $modnames
  * Removes all grades from gradebook
  *
  * @param int $courseid
- * @param string optional type
+ * @param string optional $type
  */
 function game_reset_gradebook($courseid, $type='') {
     global $DB;
@@ -682,6 +684,7 @@ function game_reset_gradebook($courseid, $type='') {
  * What supports.
  *
  * @uses FEATURE_GRADE_HAS_GRADE
+ * @param string $feature
  * @return bool True if quiz supports feature
  */
 function game_supports($feature) {
@@ -814,7 +817,7 @@ function game_get_grading_options() {
  * context when this is called
  *
  * @param settings_navigation $settings
- * @param navigation_node $quiznode
+ * @param navigation_node $gamenode
  * @return void
  */
 function game_extend_settings_navigation($settings, $gamenode) {
@@ -1005,6 +1008,8 @@ if (!defined('USE_GET_SHORTCUTS')) {
 if (defined('USE_GET_SHORTCUTS')) {
     /**
      * Returns an array of game type objects to construct menu list when adding new game
+     *
+     * @param stdClass $defaultitem
      */
     function game_get_shortcuts($defaultitem) {
         global $DB, $CFG;
@@ -1143,8 +1148,8 @@ if (defined('USE_GET_SHORTCUTS')) {
  * @param stdClass $cm
  * @param stdClass $context
  * @param string filearea
- * @param array args
- * @param boolean forcedownload
+ * @param array $args
+ * @param boolean $forcedownload
  *
  * @return boolean false if not exists file
  */
@@ -1233,7 +1238,7 @@ function game_reset_course_form_defaults($course) {
 /**
  * Actual implementation of the reset course functionality, delete all the Game responses for course $data->courseid.
  *
- * @param $data the data submitted from the reset course.
+ * @param stdClass $data the data submitted from the reset course.
  *
  * @return array status array
  */
diff --git a/locallib.php b/locallib.php
index 983a587..c7bb648 100644
--- a/locallib.php
+++ b/locallib.php
@@ -104,9 +104,10 @@ function game_upper( $str, $lang='') {
  * Returns the HTML of a select control.
  *
  * @param string $name
- * @param array a
+ * @param array $a
  * @param string $input
  * @param array $events
+ *
  * @return string the HTML
  */
 function game_showselectcontrol( $name, $a,  $input, $events='') {
@@ -142,10 +143,10 @@ function game_showcheckbox( $name, $value) {
 /**
  * Used by hangman. Returns a short answer.
  *
- * @param string $name
- * @param array a
- * @param string $input
- * @param array $events
+ * @param stdClass $game
+ * @param boolean $allowspaces
+ * @param boolean $userepetitions
+ *
  * @return string the HTML
  */
 function game_question_shortanswer( $game, $allowspaces=false, $userepetitions=true) {
@@ -165,11 +166,10 @@ function game_question_shortanswer( $game, $allowspaces=false, $userepetitions=t
 /**
  * Used by hangman. Returns a short answer from glossary.
  *
- * @param string $name
- * @param array a
- * @param string $input
- * @param array $events
- * @return string the HTML
+ * @param stdClass $game
+ * @param boolean $allowspaces
+ * @param boolean $userepetitions
+ *
  */
 function game_question_shortanswer_glossary( $game, $allowspaces, $userepetitions) {
     global $DB;
@@ -215,11 +215,9 @@ function game_question_shortanswer_glossary( $game, $allowspaces, $userepetition
 /**
  * Used by hangman. Returns a short answer from quiz.
  *
- * @param string $name
- * @param array a
- * @param string $input
- * @param array $events
- * @return string the HTML
+ * @param stdClass $game
+ * @param boolean $allowspaces
+ * @param boolean $userepetitions
  */
 function game_question_shortanswer_quiz( $game, $allowspaces, $userepetitions) {
     global $DB;
@@ -263,10 +261,10 @@ function game_question_shortanswer_quiz( $game, $allowspaces, $userepetitions) {
 /**
  * Used by hangman. Returns a short answer from question.
  *
- * @param string $name
  * @param stdClass $game
  * @param boolean $allowspaces
  * @param boolean $userepetitions
+ *
  * @return the short answer record
  */
 function game_question_shortanswer_question( $game, $allowspaces, $userepetitions) {
@@ -318,6 +316,7 @@ function game_question_shortanswer_question( $game, $allowspaces, $userepetition
  * @param string $select
  * @param string $idfields
  * @param boolean userepetitions
+ *
  * @return stdClass the random question
  */
 function game_question_selectrandom( $game, $table, $select, $idfields='id', $userepetitions=true) {
@@ -429,7 +428,8 @@ function game_update_repetitions( $gameid, $userid, $questionid, $glossaryentryi
  *
  * @param stdClass $game
  * @param int count
- * @param stdClass the random record(s)
+ *
+ * @return stdClass the random record(s)
  */
 function game_questions_selectrandom( $game, $count=1) {
     global $DB;
@@ -528,8 +528,9 @@ function game_questions_selectrandom( $game, $count=1) {
  *
  * @param string $table
  * @param string $select
-   @param int $idfield
-   @param int $count
+ * @param int $idfield
+ * @param int $count
+ *
  * @return stdClass the random record(s)
  */
 function game_questions_selectrandom_detail( $table, $select, $idfield="id", $count=1) {
@@ -557,7 +558,7 @@ function game_questions_selectrandom_detail( $table, $select, $idfield="id", $co
 /**
  * Tries to detect the language of word.
  *
- * @param $word
+ * @param string $word
  *
  * @return the language detected
  */
@@ -600,9 +601,9 @@ function game_detectlanguage( $word) {
 /**
  * The words maybe are in two languages e.g. greek or english so I try to find the correct one.
  *
- * @param $word
- * @param $lang
- * @param $userlanguage
+ * @param string $word
+ * @param string $lang
+ * @param string $userlanguage
  *
  * @return the letters detected
  */
@@ -639,8 +640,8 @@ function game_getallletters( $word, $lang='', $userlanguage='') {
 /**
  * true if exist all the letters
  *
- * @param $str
- * @param $strfile
+ * @param string $str
+ * @param string $strfile
  *
  * @return the letters detected
  */
@@ -659,7 +660,7 @@ function hangman_existall( $str, $strfind) {
 /**
  * return a short answer randomly selected. used by cross
  *
- * @param $game
+ * @param stdClass $game
  *
  * @return a question
  */
@@ -682,7 +683,7 @@ function game_questions_shortanswer( $game) {
 /**
  * return a short answer (from glossary) randomly selected. used by cross
  *
- * @param $game
+ * @param stdClass $game
  *
  * @return a question
  */
@@ -707,7 +708,7 @@ function game_questions_shortanswer_glossary( $game) {
 /**
  * return a short answer (from quiz) randomly selected. used by cross
  *
- * @param $game
+ * @param stdClass $game
  *
  * @return a question
  */
@@ -744,7 +745,7 @@ function game_questions_shortanswer_quiz( $game) {
 /**
  * return a short answer (from question) randomly selected. used by cross
  *
- * @param $game
+ * @param stdClass $game
  *
  * @return a question
  */
@@ -775,9 +776,9 @@ function game_questions_shortanswer_question( $game) {
 /**
  * question fraction
  *
- * @param $table
- * @param $field
- * @param $select
+ * @param string $table
+ * @param string $fields
+ * @param string $select
  *
  * @return the record
  */
@@ -815,9 +816,9 @@ function game_questions_shortanswer_question_fraction( $table, $fields, $select)
 /**
  * sets char
  *
- * @param $d
- * @param $pos
- * @param $char
+ * @param string $s
+ * @param int $pos
+ * @param string $char
  */
 function game_setchar( &$s, $pos, $char) {
     $ret = "";
@@ -832,8 +833,8 @@ function game_setchar( &$s, $pos, $char) {
 /**
  * insert a record
  *
- * @param $table
- * @param $rec
+ * @param stdClass $table
+ * @param stdClass $rec
  */
 function game_insert_record( $table, $rec) {
     global $DB;
@@ -862,10 +863,10 @@ function game_insert_record( $table, $rec) {
 /**
  * If score is negative doesn't update the record score is between 0 and 1.
  *
- * @param $game
- * @param $attempt
- * @param $score
- * @param $finished
+ * @param stdClass $game
+ * @param stdClass $attempt
+ * @param float $score
+ * @param boolean $finished
  *
  * @return the record
  */
@@ -917,10 +918,10 @@ function game_updateattempts( $game, $attempt, $score, $finished) {
 /**
  * Computes max grade
  *
- * @param $game
- * @param $attempt
- * @param $grade
- * @param $finished
+ * @param stdClass $game
+ * @param stdClass $attempt
+ * @param float $grade
+ * @param boolean $finished
  *
  * @return the record
  */
@@ -939,12 +940,12 @@ function game_updateattempts_maxgrade( $game, $attempt, $grade, $finished) {
 /**
  * Update queries
  *
- * @param $game
- * @param $attempt
- * @param $query
- * @param $score
- * @param $studentanswer
- * @param $updatetries
+ * @param stdClass $game
+ * @param stdClass $attempt
+ * @param string $query
+ * @param float $score
+ * @param string $studentanswer
+ * @param boolean $updatetries
  *
  * @return the record
  */
@@ -1007,9 +1008,9 @@ function game_update_queries( $game, $attempt, $query, $score, $studentanswer, $
 /**
  * get attempt
  *
- * @param $game
- * @param $detail
- * @param $autoadd
+ * @param stdClass $game
+ * @param stdclass $detail
+ * @param boolean $autoadd
  */
 function game_getattempt( $game, &$detail, $autoadd=false) {
     global $DB, $USER;
@@ -1050,6 +1051,7 @@ function game_getattempt( $game, &$detail, $autoadd=false) {
  * @param integer $gameid the game id.
  * @param integer $userid the userid.
  * @param string $status 'all', 'finished' or 'unfinished' to control
+ *
  * @return an array of all the user's attempts at this game. Returns an empty array if there are none.
  */
 function game_get_user_attempts( $gameid, $userid, $status = 'finished') {
@@ -1093,6 +1095,7 @@ function game_get_user_attempt_unfinished( $gameid, $userid) {
  *
  * @param object $game the game object.
  * @param integer $userid the id of the user.
+ *
  * @return float the user's current grade for this game.
  */
 function game_get_best_score($game, $userid) {
@@ -1113,6 +1116,7 @@ function game_get_best_score($game, $userid) {
  *
  * @param object $game the game object.
  * @param integer $userid the id of the user.
+ *
  * @return float the user's current grade for this game.
  */
 function game_get_best_grade($game, $userid) {
@@ -1128,8 +1132,9 @@ function game_get_best_grade($game, $userid) {
 /**
  * Converts score to grade
  *
- * @param $score
- * @param $grade
+ * @param float $score
+ * @param float $grade
+ *
  * @return float the user's current grade for this game.
  */
 function game_score_to_grade($score, $game) {
@@ -1197,7 +1202,7 @@ function game_get_reviewoptions($game, $attempt, $context=null) {
  * Compute attempt layout
  *
  * @param object $game the game object.
- * @param $attempt
+ * @param stdClass $attempt
  * @return float the user's current grade for this game.
  */
 function game_compute_attempt_layout( $game, &$attempt) {
@@ -1402,10 +1407,10 @@ function game_sudoku_getquestions( $questionlist) {
 /**
  * Filter glossary
  *
- * @param $text
- * @param $entryid
- * @param $contextid
- * @param $courseid
+ * @param string $text
+ * @param int $entryid
+ * @param int $contextid
+ * @param int $courseid
  */
 function game_filterglossary( $text, $entryid, $contextid, $courseid) {
     global $CFG, $DB;
@@ -1440,10 +1445,10 @@ function game_filterglossary( $text, $entryid, $contextid, $courseid) {
 /**
  * Filter book
  *
- * @param $text
- * @param $chapterid
- * @param $contextid
- * @param $courseid
+ * @param string $text
+ * @param int $chapterid
+ * @param int $contextid
+ * @param int $courseid
  */
 function game_filterbook( $text, $chapterid, $contextid, $courseid) {
     global $CFG, $DB;
@@ -1478,10 +1483,10 @@ function game_filterbook( $text, $chapterid, $contextid, $courseid) {
 /**
  * Filter questio
  *
- * @param $questiontext
- * @param $questionid
- * @param $contextid
- * @param $courseid
+ * @param string $questiontext
+ * @param int $questionid
+ * @param int $contextid
+ * @param int $courseid
  */
 function game_filterquestion( $questiontext, $questionid, $contextid, $courseid) {
     global $CFG, $DB;
@@ -1516,10 +1521,10 @@ function game_filterquestion( $questiontext, $questionid, $contextid, $courseid)
 /**
  * Filter question answer
  *
- * @param $questiontext
- * @param $questionid
- * @param $contextid
- * @param $courseid
+ * @param string $questiontext
+ * @param int $questionid
+ * @param int $contextid
+ * @param int $courseid
  */
 function game_filterquestion_answer( $questiontext, $questionid, $contextid, $courseid) {
     global $CFG, $DB;
@@ -1553,8 +1558,8 @@ function game_filterquestion_answer( $questiontext, $questionid, $contextid, $co
 /**
  * Filter text
  *
- * @param $text
- * @param $courseid
+ * @param string $text
+ * @param int $courseid
  */
 function game_filtertext( $text, $courseid) {
     $formatoptions = new stdClass();
@@ -1580,7 +1585,7 @@ function game_filtertext( $text, $courseid) {
 /**
  * To javascript string
  *
- * @param $text
+ * @param string $text
  */
 function game_tojavascriptstring( $text) {
     $from = array('"', "\r", "\n");
@@ -1597,7 +1602,7 @@ function game_tojavascriptstring( $text) {
 /**
  * Repair question
  *
- * @param $s
+ * @param string $s
  */
 function game_repairquestion( $s) {
     if (substr( $s, 0, 3) == '<p>') {
@@ -1627,8 +1632,8 @@ function game_repairquestion( $s) {
 /**
  * Delete a game attempt.
  *
- * @param $attempt
- * @param $game
+ * @param stdClass $attempt
+ * @param stdClass $game
  */
 function game_delete_attempt($attempt, $game) {
     global $DB;
@@ -1700,7 +1705,7 @@ function game_get_grading_option_name($option) {
 /**
  * Right to left.
  *
- * @param $lang
+ * @param string $lang
  */
 function game_right_to_left( $lang) {
     return ( get_string_manager()->get_string('thisdirection', 'langconfig', null, $lang) == 'rtl');
@@ -1709,9 +1714,9 @@ function game_right_to_left( $lang) {
 /**
  * Compute reverse print
  *
- * @param $attempt
- * @param $wordctrl
- * @param $reverseprint
+ * @param stdClass $attempt
+ * @param string $wordctrl
+ * @param boolean $reverseprint
  */
 function game_compute_reserve_print( $attempt, &$wordrtl, &$reverseprint) {
     if (function_exists( 'right_to_left')) {
@@ -1730,9 +1735,9 @@ function game_compute_reserve_print( $attempt, &$wordrtl, &$reverseprint) {
 /**
  * select from repetitions
  *
- * @param $game
- * @param $recs
- * @param $need
+ * @param stdClass $game
+ * @param stdClass $recs
+ * @param booolean $need
  */
 function game_select_from_repetitions( $game, $recs, $need) {
     global $DB, $USER;
@@ -1778,11 +1783,11 @@ function game_select_from_repetitions( $game, $recs, $need) {
 /**
  * Grades responses
  *
- * @param $question
- * @param $responses
- * @param $maxgrade
- * @param $answertext
- * @param $answered
+ * @param stdClass $question
+ * @param array $responses
+ * @param int $maxgrade
+ * @param string $answertext
+ * @param boolean $answered
  */
 function game_grade_responses( $question, $responses, $maxgrade, &$answertext, &$answered) {
     $answered = true;
@@ -1822,10 +1827,10 @@ function game_grade_responses( $question, $responses, $maxgrade, &$answertext, &
 /**
  * Responses multianswer
  *
- * @param $question
- * @param $responses
- * @param $maxgrade
- * @param $answertext
+ * @param stdClass $question
+ * @param array $responses
+ * @param int $maxgrade
+ * @param string $answertext
  */
 function game_grade_responses_multianswer( $question, $responses, $maxgrade, &$answertext) {
     $name = "resp{$question->id}_";
@@ -1850,9 +1855,9 @@ function game_grade_responses_multianswer( $question, $responses, $maxgrade, &$a
 /**
  * Print question
  *
- * @param $game
- * @param $question
- * @param $context
+ * @param stdClass $game
+ * @param string $question
+ * @param stdClass $context
  */
 function game_print_question( $game, $question, $context) {
     if ($question->qtype == 'multichoice') {
@@ -1869,9 +1874,9 @@ function game_print_question( $game, $question, $context) {
 /**
  * Print question multichoice
  *
- * @param $game
- * @param $question
- * @param $context
+ * @param stdClass $game
+ * @param string $question
+ * @param stdClass $context
  */
 function game_print_question_multichoice( $game, $question, $context) {
     global $CFG;
@@ -1933,8 +1938,8 @@ foreach ($anss as $answer) {
  * Print question multianswer
  *
  * @param object $game the game object.
- * @param $question
- * @param $context
+ * @param stdClass $question
+ * @param stdClass $context
  */
 function game_print_question_multianswer( $game, $question, $context) {
     global $CFG;
@@ -1997,7 +2002,7 @@ foreach ($anss as $answer) {
  *
  * @param stdClass $game
  * @param stdClass $question
- * @param $context
+ * @param stdClass $context
  */
 function game_print_question_shortanswer( $game, $question, $context) {
     $questiontext = $question->questiontext;
@@ -2157,9 +2162,9 @@ function game_export_createtempdir() {
 /**
  * Create zip
  *
- * @param $srcdir
- * @param $couseid
- * @param $filename
+ * @param string $srcdir
+ * @param int $courseid
+ * @param string $filename
  */
 function game_create_zip( $srcdir, $courseid, $filename) {
     global $CFG;
@@ -2193,9 +2198,9 @@ function game_create_zip( $srcdir, $courseid, $filename) {
 /**
  * Get string lang
  *
- * @param $identifier
- * @param $module
- * @param $lang
+ * @param string $identifier
+ * @param string $module
+ * @param string $lang
  */
 function game_get_string_lang( $identifier, $module, $lang) {
     global $CFG;
@@ -2206,9 +2211,9 @@ function game_get_string_lang( $identifier, $module, $lang) {
 /**
  * Get string from file
  *
- * @param $identifier
- * @param $lanfile
- * @param $destination
+ * @param string $identifier
+ * @param string $lanfile
+ * @param string $destination
  */
 function get_string_from_file($identifier, $langfile, $destination) {
     static $strings;    // Keep the strings cached in memory.
@@ -2277,13 +2282,13 @@ function game_get_contexts() {
 /**
  * Export split files
  *
- * @param $courseid
- * @param $context
- * @param $filearea
- * @param $id
- * @param $line
- * @param $destdir
- * @pram $files
+ * @param int $courseid
+ * @param stdClass $context
+ * @param string $filearea
+ * @param int $id
+ * @param string $line
+ * @param string $destdir
+ * @pram array $files
  */
 function game_export_split_files( $courseid, $context, $filearea, $id, $line, $destdir, &$files) {
     global $CFG, $DB;
@@ -2346,7 +2351,7 @@ function game_export_split_files( $courseid, $context, $filearea, $id, $line, $d
 /**
  * Grade questions
  *
- * @param $questions
+ * @param array $questions
  */
 function game_grade_questions( $questions) {
     $grades = array();
@@ -2445,7 +2450,7 @@ function game_can_start_new_attempt( $game) {
 /**
  * strlen
  *
- * @param $str
+ * @param string $str
  */
 function game_strlen( $str) {
     if (game_get_moodle_version() >= '02.08') {
@@ -2489,7 +2494,7 @@ function game_substr() {
 /**
  * strtoupper
  *
- * @param $str
+ * @param string $str
  */
 function game_strtoupper( $str) {
     if (game_get_moodle_version() >= '02.08') {
@@ -2507,9 +2512,9 @@ function game_strtoupper( $str) {
 /**
  * strpos
  *
- * @param $haystack
- * @param $needle
- * @param $offset
+ * @param string $haystack
+ * @param string $needle
+ * @param int $offset
  */
 function game_strpos( $haystack, $needle, $offset = 0) {
     if (game_get_moodle_version() >= '02.08') {
@@ -2527,8 +2532,8 @@ function game_strpos( $haystack, $needle, $offset = 0) {
  * show query
  *
  * @param object $game the game
- * @param $query
- * @param $text
+ * @param stdClass $query
+ * @param string $text
  */
 function game_show_query( $game, $query, $text) {
     if ($game->glossaryid) {
diff --git a/millionaire/play.php b/millionaire/play.php
index 61f2d38..663514e 100644
--- a/millionaire/play.php
+++ b/millionaire/play.php
@@ -27,11 +27,11 @@ defined('MOODLE_INTERNAL') || die();
 /**
  * Plays the millionaire
  *
- * @param $id
- * @param $game
- * @param $attempt
- * @param $millionaire
- * @param $context
+ * @param int $id
+ * @param stdClass $game
+ * @param stdClass $attempt
+ * @param stdClass $millionaire
+ * @param stdClass $context
  */
 function game_millionaire_continue( $id, $game, $attempt, $millionaire, $context) {
     // User must select quiz or question as a source module.
@@ -68,11 +68,11 @@ function game_millionaire_continue( $id, $game, $attempt, $millionaire, $context
 /**
  * Plays the millionaire
  *
- * @param $id
- * @param $game
- * @param $attempt
- * @param $millionaire
- * @param $context
+ * @param int $id
+ * @param stdClass $game
+ * @param stdClass $attempt
+ * @param stdClass $millionaire
+ * @param stdClass $context
  */
 function game_millionaire_play( $id, $game, $attempt, $millionaire, $context) {
     global $DB;
@@ -117,13 +117,13 @@ function game_millionaire_play( $id, $game, $attempt, $millionaire, $context) {
 /**
  * Shows the grid
  *
- * @param $game
- * @param $millionaire
- * @param $id
- * @param $query
- * @param $aanswer
- * @param $info
- * @param $context
+ * @param stdClass $game
+ * @param stdClass $millionaire
+ * @param int $id
+ * @param stdClass $query
+ * @param array $aanswer
+ * @param stdClass $info
+ * @param stdClass $context
  */
 function game_millionaire_showgrid( $game, $millionaire, $id, $query, $aanswer, $info, $context) {
     global $CFG, $OUTPUT;
@@ -317,11 +317,11 @@ function game_millionaire_showgrid( $game, $millionaire, $id, $query, $aanswer,
 /**
  * Show next question
  *
- * @param $id
- * @param $game
- * @param $attempt
- * @param $millionaire
- * @param $context
+ * @param int $id
+ * @param stdClass $game
+ * @param stdClass $attempt
+ * @param stdClass $millionaire
+ * @param stdClass $context
  */
 function game_millionaire_shownextquestion( $id, $game, $attempt, $millionaire, $context) {
     game_millionaire_selectquestion( $aanswer, $game, $attempt, $millionaire, $query, $context);
@@ -340,12 +340,12 @@ function game_millionaire_shownextquestion( $id, $game, $attempt, $millionaire,
 /**
  * Updates tables: games_millionaire, game_attempts, game_questions.
  *
- * @param $answer
- * @param $game
- * @param $attemt
- * @param $millionaire
- * @param $query
- * @param $context
+ * @param string $answer
+ * @param stdClass $game
+ * @param stdClasss $attempt
+ * @param stdClass $millionaire
+ * @param stdClass $query
+ * @param stdClass $context
  */
 function game_millionaire_selectquestion( &$aanswer, $game, $attempt, &$millionaire, &$query, $context) {
     global $DB, $USER;
@@ -475,12 +475,12 @@ function game_millionaire_selectquestion( &$aanswer, $game, $attempt, &$milliona
 /**
  * Select serial question
  *
- * @param $game
- * @param $table
- * @param $select
- * @param $idfields
- * @param $level
- * @param $order
+ * @param stdClass $game
+ * @param string $table
+ * @param string $select
+ * @param string $idfields
+ * @param int $level
+ * @param string $order
  */
 function game_millionaire_select_serial_question( $game, $table, $select, $idfields = "id", $level, $order) {
     global $DB, $USER;
@@ -515,11 +515,11 @@ function game_millionaire_select_serial_question( $game, $table, $select, $idfie
 /**
  * Load questions for millionaire
  *
- * @param $game
- * @param $millionaire
- * @param $query
- * @param $aanswer
- * @param $context
+ * @param stdClass $game
+ * @param stdClass $millionaire
+ * @param string $query
+ * @param array $aanswer
+ * @param stdClass $context
  */
 function game_millionaire_loadquestions( $game, $millionaire, &$query, &$aanswer, $context) {
     global $DB;
@@ -539,8 +539,8 @@ function game_millionaire_loadquestions( $game, $millionaire, &$query, &$aanswer
 /**
  * Set state. Flag 1 is 5050, 2 is telephone 4 is people.
  *
- * @param $millionaire
- * @param $mask
+ * @param stdClass $millionaire
+ * @param string $mask
  */
 function game_millionaire_setstate( &$millionaire, $mask) {
     global $DB;
@@ -558,11 +558,11 @@ function game_millionaire_setstate( &$millionaire, $mask) {
 /**
  * One help 50-50
  *
- * @param $game
- * @param $id
- * @param $millionaire
- * @param $query
- * @param $context
+ * @param stdClass $game
+ * @param int $id
+ * @param stdClass $millionaire
+ * @param string $query
+ * @param stdClass $context
  */
 function game_millionaire_onhelp5050( $game, $id,  &$millionaire, $query, $context) {
     game_millionaire_loadquestions( $game, $millionaire, $query, $aanswer, $context);
@@ -595,11 +595,11 @@ function game_millionaire_onhelp5050( $game, $id,  &$millionaire, $query, $conte
 /**
  * One help telephone
  *
- * @param $game
- * @param $id
- * @param $millionaire
- * @param $query
- * @param $context
+ * @param stdClass $game
+ * @param int $id
+ * @param stdClass $millionaire
+ * @param stdClass $query
+ * @param stdClass $context
  */
 function game_millionaire_onhelptelephone(  $game, $id,  &$millionaire, $query, $context) {
     game_millionaire_loadquestions( $game, $millionaire, $query, $aanswer, $context);
@@ -638,11 +638,11 @@ function game_millionaire_onhelptelephone(  $game, $id,  &$millionaire, $query,
 /**
  * One help people
  *
- * @param $game
- * @param $id
- * @param $millionaire
- * @param $query
- * @param $context
+ * @param stdClass $game
+ * @param int $id
+ * @param stdClass $millionaire
+ * @param stdClass $query
+ * @param stdClass $context
  */
 function game_millionaire_onhelppeople( $game, $id,  &$millionaire, $query, $context) {
     game_millionaire_loadquestions( $game, $millionaire, $query, $aanswer, $context);
@@ -687,13 +687,13 @@ function game_millionaire_onhelppeople( $game, $id,  &$millionaire, $query, $con
 /**
  * Millionaire on answer
  *
- * @param $id
- * @param $game
- * @param $attempt
- * @param $millionaire
- * @param $query
- * @param $answer
- * @param $context
+ * @param int $id
+ * @param stdClass $game
+ * @param stdClass $attempt
+ * @param stdClass $millionaire
+ * @param stdClass $query
+ * @param string $answer
+ * @param stdClass $context
  */
 function game_millionaire_onanswer( $id, $game, $attempt, &$millionaire, $query, $answer, $context) {
     global $DB;
@@ -745,10 +745,10 @@ function game_millionaire_onanswer( $id, $game, $attempt, &$millionaire, $query,
 /**
  * Millionaire on quit
  *
- * @param $id
- * @param $game
- * @param $attempt
- * @param $query
+ * @param int $id
+ * @param stdClass $game
+ * @param stdClass $attempt
+ * @param stdClass $query
  */
 function game_millionaire_onquit( $id, $game, $attempt, $query) {
     global $CFG, $DB;
diff --git a/mod_form.php b/mod_form.php
index 6c3c815..1e43bb6 100644
--- a/mod_form.php
+++ b/mod_form.php
@@ -20,6 +20,7 @@
  * @package   mod_game
  * @author    Alastair Munro <alastair@catalyst.net.nz>
  * @license   http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ * @copyright  2007 Vasilis Daloukas
  */
 
 defined('MOODLE_INTERNAL') || die();
@@ -431,8 +432,8 @@ class mod_game_mod_form extends moodleform_mod {
     /**
      * validation
      *
-     * @param $data
-     * @param $files
+     * @param stdClass $data
+     * @param array $files
      *
      * @return moodle_url
      */
@@ -451,7 +452,7 @@ class mod_game_mod_form extends moodleform_mod {
     /**
      * Set data
      *
-     * @param $defaultvalues
+     * @param array $defaultvalues
      */
     public function set_data($defaultvalues) {
         global $DB;
diff --git a/report/overview/report.php b/report/overview/report.php
index f135458..5eaa785 100644
--- a/report/overview/report.php
+++ b/report/overview/report.php
@@ -38,9 +38,9 @@ class game_report extends game_default_report {
     /**
      * Display the report.
      *
-     * @param $game
-     * @param $cm
-     * @param $course
+     * @param stdClass $game
+     * @param stdClass $cm
+     * @param stdClass $course
      */
     public function display($game, $cm, $course) {
         global $CFG, $SESSION, $DB;
diff --git a/showanswers.php b/showanswers.php
index 7d132ab..54de043 100644
--- a/showanswers.php
+++ b/showanswers.php
@@ -58,7 +58,7 @@ echo $OUTPUT->footer();
 /**
  * Compute repetitions
  *
- * @param $game
+ * @param stdClass $game
  */
 function game_compute_repetitions($game) {
     global $DB, $USER;
@@ -77,7 +77,7 @@ function game_compute_repetitions($game) {
 /**
  * Show users
  *
- * @param $game
+ * @param stdClass $game
  */
 function game_showusers($game) {
     global $CFG, $USER;
@@ -142,9 +142,9 @@ function game_showusers($game) {
 /**
  * Show answers
  *
- * @param $game
- * @param $existsbook
- * @param $context
+ * @param stdClass $game
+ * @param boolean $existsbook
+ * @param stdClass $context
  */
 function game_showanswers( $game, $existsbook, $context) {
     if ($game->gamekind == 'bookquiz' and $existsbook) {
@@ -168,7 +168,7 @@ function game_showanswers( $game, $existsbook, $context) {
 /**
  * append select to SQL
  *
- * @param $game
+ * @param stdClass $game
  */
 function game_showanswers_appendselect( $game) {
     switch ($game->gamekind) {
@@ -190,8 +190,8 @@ function game_showanswers_appendselect( $game) {
 /**
  * Show answers question
  *
- * @param $game
- * @param $context
+ * @param stdClass $game
+ * @param stdClass $context
  */
 function game_showanswers_question( $game, $context) {
     global $DB;
@@ -228,8 +228,8 @@ function game_showanswers_question( $game, $context) {
 /**
  * Show answers quiz
  *
- * @param $game
- * @param $context
+ * @param stdClass $game
+ * @param stdClass $context
  */
 function game_showanswers_quiz( $game, $context) {
     global $CFG;
@@ -252,14 +252,14 @@ function game_showanswers_quiz( $game, $context) {
 /**
  * Create the select for SQL
  *
- * @param $game
- * @param $table
- * @param $select
- * @param $fields
- * @param $order
- * @param $showcategoryname
- * @param $courseid
- * @param $context
+ * @param stdClass $game
+ * @param string $table
+ * @param string $select
+ * @param string $fields
+ * @param string $order
+ * @param boolean $showcategoryname
+ * @param int $courseid
+ * @param stdClass $context
  */
 function game_showanswers_question_select( $game, $table, $select, $fields, $order, $showcategoryname, $courseid, $context) {
     global $CFG, $DB, $OUTPUT;
@@ -403,7 +403,7 @@ function game_showanswers_question_select( $game, $table, $select, $fields, $ord
 /**
  * Show answers glossary
  *
- * @param $game
+ * @param stdClass $game
  */
 function game_showanswers_glossary( $game) {
     global $CFG, $DB;