Tetris is a classic puzzle video game. Perhaps THE classic puzzle video game. It's one of the bestselling video games of all time and holds the Guinness world record for the most ported video game ever. Get points by completing lines using the four-block pieces called tetrominoes. Completed lines disappear and you stave off the inevitable death when the playing field is full of blocks but no completed lines. Get bonus points for dropping four lines at once: a TETRIS. The game speeds up the longer you're playing, so test your intelligence and skills both as you race the clock and yourself to see how long you'll last.