Infinite Mario in HTML5 canvas
Impressive – originally created in Java by Markus “Notch” Persson (the creator of MineCraft) and ported into JavaScript by recent high school graduate Robert Kleffner. In Robert’s recent blog post he bemoans the state of HTML5 Audio (which is indeed terrible) and the lack of JS overloading (could be useful, but pretty low priority if you ask me 
).
Play Infinite Mario in HTML5 canvas [via Paul Rouget]
Link seems to have been removed – does anyone know where it’s gone?
Original Java version by Markus “Notch” Persson