Zoo is a fiendishly addictive puzzle game. The object of the game is to try and line up three animals of the same kind to make them disappear from the game-screen, racking up as many points as possible as you go along. There are five game modes available: Normal - Line up, capture and meet your quota, Tokoton - Level up for every 100 animals caught, Time Attack - Score big within the time limit, Score Attack - Reach 200,000 points as fast as you can, and Quest - Tackle 8 special challenges.