Your character (the fish) is swimming around, having fun playing tag with your cursor, when a shark comes along! It's trying to eat the fish, but doesn't realize that the fish is actually an evolved version of a stone-fish, the most poisonous fish of the sea. Sure, it's colorful and all that, but the shark is dumb. If the shark touches the fish three times, then it turns green and dies, and you also die.
