OK, I was laughing too hard playing this...

[blueerica]

Break The Wall (http://www.ugoto.com/games/break-the-wall.html)

[Cadaverous Pallor]

Ok, that's fun. :)

[Alex]

Can you break the final wall or is that part of the joke? I got there easily enough but never hit it right on a half-dozen tries.

[wendybeth]

Yeah, but it just quits after two billion.;)

(If you hit it just right when the guy throws a punch, the wall breaks).