Hello, Hard core emacs users probably know this, but those who don't here goes :
Emacs has a tetris buffer !!! :-)
In an open window do : M-x tetris
and play Tetris :-)
As it is an Emacs buffer just kill it with C-x k
Enjoy :-)
And thanks to Chaitanya ``C.G" Gupta for telling me this :-)
Regards,
- vihan