Cuberis

In Cuberis you will face a particular version of Tetris in which there will be 4 boards instead of 1, that you can switch freely during the game.
You will have more freedom to move and place the piece, but to delete the line and get your points, you will have to complete the line on all 4 boards. If your piece will end on an occupied position, it will be frozen and it will not fall down, giving you the possibility to move it freely until you find a free space to place it.