Arrange and erase two more blocks of the same color. Blocks become the back side. Memorize colors on the other side of blocks. Erase blocks continuously and aim at the high score. The black block cannot be erased.
[Feature]
Support online 2 players mode.
[Easy Operating Instructions]
Flick down : Drop blocks quickly.
Flick left : Move blocks to left.
Flick right : Move blocks to right.
Double tap : Turn blocks inside out.