I gotta say, I really like Shark! Shark! I played it a lot on the Intellivision Lives! compilation. You play the role of a small fish. Every time it eats a fish smaller than itself, it grows into a larger fish. The larger the fish your fish eats, the faster he grows and the more points you earn. But watch out - if another, larger fish gets you, you lose a life! And the top predator in this food chain is... the shark! The game is simple yet so very much fun!