Officialy Licensed: This is an officially licensed Tetris title, ensuring an authentic gaming experienceAddictive Gameplay: The iconic Tetris game challenges your brain with addictive puzzle action, fast-paced block stacking and sharpens your reflexes. Includes 300 bonus games. Full color 2.5" screenPortable Power: Powered by 3 Aaa batteries for gaming on-the-go (batteries not included). On/Off Led switch for illuminated buttonsHeadphone Jack: 3.