Line up the monsters to make them disappear. This game is similar in structure to Tetris. You start with an empty game board, and lines of three monsters start falling from the top of the game. There are six types of monsters. You want to line up three or more in a row to make them disappear and earn points. Use the left and right arrow keys to move them left and right. Push the up key to make the monsters switch positions. Push down to make them go down faster and earn more points. If any row reaches the top of the screen, the game is over!