Divekick is this new "fighting game" for PC and Sonystuff controlled with only three buttons, one of which is only used to pause. The other two are dive (jump) and kick (diving kick). If you get hit even once, it's a KO, and the first player to get five KOs wins. It is a huge joke about fighting games, fighting metagames, and the people that play them.
And the punchline is that it's an awesome game on its own.
It's crazy, more fun than it sounds, and easy to get into. Even if you don't know anything about fighting games (I believe there are a few jabs at Super Smash Bros. in it), there is still humor to appreciate in the characters' win quotes, entire characterizations and storylines, and the useless loading screen tips from Uncle Sensei.