Tetris DS (Nintendo DS, 2006)

Who would have thought that the simple formula of tetris could be improved upon whatsoever. Well Ninendo has taken a simple, classic puzzle game and spun it into six completely different game modes that each represent hours of puzzle fun on the go. This is easily the best version of tetris produced to date. None other comes close. The best feature is that virtually the entire game can be played in multiplayer mode with only a single cartridge. This makes it one of the best mulitplayer games on the DS for that single reason. But whether you're playing with friends or just trying to improve you high score, you'll get sucked into this very fun, fun colorful, very improved game of Tetris.