Kirby's Avalanche

In the game, as in all Puyo Puyo games, groups of two colored blobs fall from the top of the screen. The player must rotate and move the groups before they touch the bottom of the screen or the pile, so that matching-colored blobs touch from above, below, the left or the right. Once four or more same-colored blobs touch, they will disappear, and any blobs above them will fall down to fill in the space. (Wikipedia)