When robots shoot horizontally, any shot the hits your character in the
space just below the head will not cause damage.
Evil Otto smashes through a wall:
Use this trick on any level that has a top door. Approach the door until
your character's head is just out of the door, but not enough to cause
your character to exit the room. Wait for Evil Otto to appear and press
Select (or move around so Otto does not get your character before
getting to your left or right side). Otto will disappear out the door
before a "laser beam" shoots to the bottom of the screen. Otto will
"smash" through the wall below and float, not bounce, towards your
Random number display:
Press Select while a robot is exploding to display a random six-digit
number at the bottom of the screen.
Avoiding Evil Otto:
Never run from Evil Otto along the bottom of the screen. Otto will take
smaller bounces and outrun your character.
Bizarre game play:
Note: The following tricks require a disassembled Atari joystick in
order to activate two opposite directions at the same time.
Lose the gun
Hold Up + Down and tap Fire. At times, you will lose your gun. The gun
will remain in one place and the robots can get killed if they walk
into it. This may also work by holding Left + Right when firing. And
if you try to shoot after losing the gun, your character's arms will
rise but no bullets will leave.
Go to the left side of the screen, hold Up + Down and then hold
Right. As soon as your character begins to move, press Fire. Note:
You should be holding the three directions while pressing Fire. The
bullets will start from the center of the screen and continue to the
right. This is useful if there is a wall in the center and there are
robots that you want to hit. Press Left instead of Right when all
three directions are held causes bullets to leave from the guy's
If this trick is done on the right side of the screen it is
sometimes possible to get the bullet to pass through the wall and
come out on the left side of the screen.
Go to the right side of the screen, hold Left + Right and then hold
Down. When press Fire, the bullet it will suddenly appear on the far
left of the screen and not move form that location. If Up is pressed
instead of Down, the bullet will appear not as far to the left.