Topless Robot dropped this via somebody else. I'm not going to bother checking references all the way back to the originator, suffice it to say that it is awesome.
Thrill at the realistic animation (stop-motion at its finest!) Marvel at the exotic locales (is that a toilet floor in E. Honda's level?) Gape in awe at the interactivity that only Web 2.0 could bring you (okay, I just threw up a little bit in mouth at that bit of buzzword nonsense.)
Just choose your opponent, then choose your attack when the buttons light up. As TR said, it's the Choose-Your-Own-Adventure for the modern age.