your goal is to fill a row to earn score, if there's no space for a new piece then you lose. (for those who somehow don't know tetris) controls: Z and X to rotate Left and Right arrows to move Down arrow to soft drop Spacebar to hard drop C to hold piece 1 line = 100 points 2 lines = 200 points 3 lines = 300 points 4 lines = 800 points combo = 2x points