You are provided with a controller including: 4 movement buttons and 1 attack button. The control buttons are located on the left side of the screen and the attack button is located on the right side of the screen. This controller is used to control a blackboard, this board is your character. From anywhere on the screen, numbers will appear and move randomly, your task is to control the character to avoid and attack to destroy the numbers to score points. When you control the character to move in one direction, when you press the attack button, the bullet fired will be shot in the opposite direction. For example, if you control the character to move to the left, when attacking your character will shoot the bullet in the opposite direction, which is the right side of the screen, this applies to all directions of movement of the character.