Hold the "Space" key to shoot, "Up arrow" key to go up, Down arrow to go down, "P" key to pause, "F" to activate the force field, Force fields will only activate if you have any. • Notes This is my original Rock Blaster's second (modification of the joystick) version. It does not have any levels, and you can have infinite money and infinite force fields. Please like, share, and comment on this game. If you can, then also follow me, please!