Play Super Mario Brothers in your browser!

[GravyMonster]

http://www.fullscreenmario.com/

Well, there goes my Friday afternoon productivity

 

[Cosimo]

Too late:

http://forums.overclockers.co.uk/showthread.php?t=18549133

 

[InHuman]

nice find, I found a problem pretty quickly though, having shift to shoot fireballs, hello mr sticky keys..

 

[GravyMonster]

Too late:

Balls