The Core Cannon is the Protagonist in the Space Invaders series.
AppearanceEditThe Core Cannon appears as a wide dome-shape with a peg sticking out of the top where the missile comes out.
The Core Cannon is controlled with a joystick (2 buttons in the Japanese version) to move horizontally and can not move verticaly. A button is used to fire a missile to attempt to hit the decending invaders. The player starts with 3 cannons. A cannon is eliminated if it is hit.