Look at some of the games written in Perl.

Check out my SameGame.

There are a few other games dotted around the monestary. Dig deep into Obfuscated Code, Code Catacombs and Craft

My favorite Perl game was an obfuscated frogger clone which won the 5th Obfuscated Perl Contest

Simon Flack ($code or die)
$,=reverse'"ro_';s,$,\$,;s,$,lc ref sub{},e;$,
=~y'_"' ';eval"die";print $_,lc substr$@,0,3;