Crack Attack! is based on the classic Super Nintendo game called Tetris Attack.The objective of the game is to group three or more pieces of the same colour to make them disappear, and with that you get points. You achieve this by interchanging the positions of two pieces. In Crack Attack! you also have to stop the pieces getting to the top, and if they do, you lose. Obviously, the more pieces you destroy, the more points you score.In Crack Attack! there are two gaming modes, which are Normal and Extreme. It is also free.