Since we're geeking out a bit here...
Bored and on a Windows system? Try:
http://taat.fi/taat/porrasturvat/
Porrasturvat or "Stair Dismount."
As Slashdot wrote, "you push a guy down the stairs and see how much damage he takes."
Reminds me of some of my ukemi...
What's your high score?
-- Jun
PS: Thanks, Kim.