Play Sonic Tetris 1
The first piece will start coming down as soon as you click the start button, so make sure you're ready to go. The goal of this game is the same as standard Tetris. You want to use the pieces to fill in rows without any gaps. A full row will disappear from the screen and add to your score. You need to match these rows so you can make more space on the screen.
You can move each piece across the screen with the left and right arrow keys. You can also rotate the pieces by pressing the up key. You can quickly move a piece to the bottom of the screen by pressing the down key.
If you're in the middle of a game and need to step away from your computer, press P to pause.
Directions
Move: Left/Right
Drop Piece: Down
Rotate Piece: Space