Color Toggle

간단하고 재미 있지만 도전적인 게임. 타일이 모두 흰색이 될 때까지 뒤집습니다.

Click any tile to reverse it's color and the color of it's adjacent tiles. Keep flipping tiles until you gotten them all to be white. Sounds easy but it's very challenging. Two levels: easy (3x3) where the tile you click and the ones on each side of it flip, and hard (4x4) where the tile you flip and the ones on each side and corner of it flip.