Zookeeper Battle is a fantastic puzzle game where you battle it out against other players on Game Center. It's mix between Bejeweled and Puzzle Fighter. In each 30 second round you make sets and combos to build up your attack and defense points. At the end of the round the two characters fight it out and the damage dealt depends on how many points you've earned. There are also power ups and debuffs to make gameplay more exciting. The only thing I wished it has is a single player mode to practice on. Other than that, the gameplay is very addictive and made me go back for more!