Eat fish that are smaller than you and avoid getting eaten by bigger ones. Smaller fish are afraid of you and they swim away when you get close, so you must be quick to gobble them. When you approach bigger fish they smell you and go after you. Play now!
It's all fun and games until some body gets thrown down the stairs and slams their face against a wall. Ouch. It looks like she was still laughing though. Play now!