Tetris Ultimate (テトリスアルティメット, Tetorisu Arutimetto) is a puzzle game developed and published by Ubisoft for the Nintendo 3DS. It is the latest installment in the long-running Tetris franchise, and features a variety of new modes and features. The game includes six different modes, including Marathon, Endless, Ultra, Sprint, Battle, and Power-Up Battle. Marathon mode is the classic Tetris experience, where players clear lines as quickly as possible. Endless mode is an infinite version of Marathon, where players compete to get the highest score possible. Ultra mode is a timed version of Marathon, where players are challenged to clear as many lines as possible in the allotted time. Sprint mode is a race against the clock, where players must clear 40 lines as quickly as possible. Battle mode is a competitive multiplayer mode, where up to four players can compete in a race to clear lines. Finally, Power-Up Battle mode is a more strategic version of Battle mode, where players can use power-ups to gain an advantage. With a variety of modes and features, Tetris Ultimate is sure to provide hours of fun for puzzle fans.