http://web.t-online.hu/archee83/sumotori/
You may have seen it on G4 as well.
You just sumo, but your guy acts as if he were drunk, and then the hilarity ensues. At the main menu...shoot at the tan walls in the back ground, on of them on the right will trigger a hidden game, you may need to try and shoot in between pillars.
That will all make sense when you play.









