This game is SO funny, Ive spent lots of hours on it. Totally worths the one dollar price.
Hold the sumo, and it gets bigger. Bounce the others, when theyre smaller than you, to convert them to your team. You win when you convert everyone. These mechanics are similar to the excellent Osmos game, but this one is 1000% faster and crazier :)
Its really fast paced, you need to think fast and make precise touches to the screen. And sometimes you will also need luck, because the characters movements start at random.
Its WAY better than the web version, because here you can use multitouch and control multiple sumos at the same time. Real fun!
00FF00 about Hungry Sumo