This is a flash unblocked version of Tetris. If you know how to play Tetris, then you will be good at this game. Drop blocks of four from the top of the screen and try to line them up in a horizontal line. Once you get a full line, the line will be cleared from the screen. The further you go and the more points you earn, the faster the game will get. Make sure not to stack the blocks to the top of the screen because you’ll get a game over!