Use the mouse to move. Avoid the sharks and try to beat the high score Shark movement patterns: Gray: Swims around randomly Light Blue: Moves slowly and follows fish Medium Blue: Bounces off edge at random directions, may occasionally change directions while not on the edge. Dark Blue: Bounces off wall towards the fish, cannot change directions otherwise. Moves quickly. This is the shark that will get you if you hide on the edge, it will move faster and follow you.