Sushi cat is introduced as being lonely. As a matter of fact: lonely and very hungry. Players are required to help sushi cat out by grinding him to as much sushi as possible and then proceed to watching him grow fat gradually as he eats more and more sushi throughout the way. The main objective of the game is to be able to fill up the belly of sushi cat in order to be able to win. As far as controls are concerned, it is very easy to control the sushi cat to get it to do what it is that you want done.