MOVE
Joystick up: Player jumps. If he is the gyroscope, he will transform back to normal again.
Joystick down: Player ducks away e.g from enemies.
Joystick down and space (For Amiga : Joystick down and 2nd firebutton): The player will transform into a gyroscope. While in this state the player is invincible and will destroy enemies on touch. The gyroscope spins automatically, and can only be directed to move left or right with the joystick. This shape also allows you to pass through narrow corridors. The player may transform into a gyroscope 3 times in each life.
Joystick left/right: Moves player left or right.

SHOT
Pressing firebutton briefly: Player fires. If you have already collected the multiple shot or the laser, the according weapon will be used.

ACTIVATE A MINE
Joystick down while holding fire: The player activates a mine. The mine is placed on the ground and explodes shortly afterwards. Various enemies walking the ground can be dealt with in this manner.

ACTIVATE A FLASH
Holding fire (For Amiga press 2nd firebutton): The player can activate a flash of lightning and may direct it (as long as FIRE is held), by moving the joystick right and left to rotate clockwise and anti-clockwise. The lightning can take on different lengths. At the beginning of the game it stretches over half the width of the screen. By gathering up extras it can be made to stretch over the full width of the screen.

[ SPACE ] - (Amiga 2nd firebutton, too; Amstrad RETURN)
Activates two energy lines, moving right and left at the full height of the screen. All enemies in range will be destroyed. Though should an obstacle bar the way the line will be stooped.

[ F7 ] - (Amiga ALT or AMIGA; Amstrad ENTER)
The player throws a grenade. Hitting an obstacle or an eye-level-monster has the effect of a smartbomb, killing every enemy on the screen. Against other enemies it works like a shot with high penetration.

[ CTRL ] - (Amiga: P; press fire to continue)
Pause game

[ S ] - (Amiga only) Sound on/off