Add this Tetris game to your keyring and enjoy the iconic game on the go! With a sprint and marathon mode, there is no better way to become a Tetris master! Gaming on the go has never been so easy with this Tetris Keyring Arcade! Add this to your keys so you can perfect your Tetris wherever you are. Gaming on the go has never been so easy with this Tetris Keyring Arcade! Add this to your keys so you can perfect your Tetris wherever you are. With two different game modes, Sprint & Marathon this is the perfect gift for any fan!