Press "reset" to clear everything and try plotting your own shape in the grid on the right. When you are done copy this all the text in the textbox,if you paste it in here later, press "upload grid data" and your shape will be recreated.
Tap to change spin direction.
Tap a cell to add a vertex,
next vertex will be added to the previous one.
Try out JS tetris?
Try out my JavaScript implementation of tetris! "A" = Move left, "D" = Move right, "W" = rotate shape ,"S" to move the shape down faster.
Alternatively, use the clickable buttons. restart the game to submit your score.