Despite the odd name, ZOOP for Sega Genesis is a deeply satisfying puzzle game. You must work with blocks of different color by shooting them and hoping that the color you shoot matches the block. If the colors match, the blocks disappear. However, if the blocks don't match, they stay put and gradually fill the playing field. ZOOP is addictive enough to pull puzzle fans in with its original idea, colorful graphics, and two-player capability.