Berzerk 3D

"You are a prisoner on an alien planet (Mazeon)
that is made up of mazes. Robot gangs hunt you
and you must shoot them before they hit you.
Evil Otto, a grinning sinister face who is
invincible, pursues you. If you can keep cool
and not go bonkers, you'll eliminate robots,
escape Evil Otto, and score big points."

What do you have to do?
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Basically, you are dropped into mazes (simple
rooms with various walls). You must shoot the
robots and move on to the next room.
>> You get 50 points for each robot destroyed, but
NO extra points for leaving a room. No matter
how the robot dies (shot, bumps into a wall,
Evil Otto squashes them etc) you get the points.
>> If you hang around in a room for more than 30
seconds, Evil Otto comes to get you. He is
invincible, can walk through walls and will
destroy anyone in his way (including any robots).
>> You and the robots will die if you are shot, bump
into a robot, touch the electrified walls or
wonder into an explosion.
>> When you first enter a room you are invincible
for 3 seconds and the robots will not shoot. Use
this time wisely, especially if you appear close
to several robots.
>> In your first room, there is a single robot who
will not shoot but will try and walk into you.
This is so you can get familiar with the
controls. Each level after that has an increasing
number of robots until the maximum is reached
(set in the options).
Sounds simple, eh?