No no, this isn't classic match-3 game or some Tetris clone. This game is a bit different. You try to change one type of colour into one neutral and when you create a solid line it disappears and you get points and you fill the bar showing how far you are from the next level. The game has really pleasant tempo, for someone too slow, and you reach higher difficulty after some time. The whole feeling is very positive, especially thanks the music.