Tetris
One of my favorite games, Tetris is a puzzle video game originally designed and programmed by Alexey Pazhitnov in the Soviet Union. The Tetris game is a popular use of tetrominoes, the four element special case of polyominoes. The game (or one of its many variants) is available for nearly every video game console and computer operating system, as well as on devices such as graphing calculators, mobile phones, portable media players, PDAs, Network music players and even as an Easter egg on non-media products like oscilloscopes.
Controls:
Arrow Keys