Wander around the maze-like corridors, shoot the robots before they shoot you, avoid the bouncing ball when it appears.

An extremely faithful port of the Atari arcade original. It's not pretty, but it plays quite well.

The player controls a green stick-figure, representing a "humanoid." Using a joystick (and a firing button to activate a laser-like weapon), the player navigates a simple maze filled with many robots, who fire lasers back at the player character. A player can be killed by being shot, by running into a robot or an exploding robot, coming into contact with the electrified walls of the maze itself, or by being touched by the player's nemesis, "Evil Otto."

In Berzerk, the player attempts to navigate through mazes while destroying robots, avoiding electrified walls, and avoiding Evil Otto, the player's arch enemy. There are 64000 mazes programmed into this game.

"Intruder Alert!" warns the robot. You are the intruder in a hostile maze-like planet where even the walls are death to touch. Relentlessly pursued by robot gangs, you must pulverize these androids with your laser gun before they blast you with theirs. "The humanoid must not escape!" shouts the robot master. Evil Otto, as he heads toward you. How long can you survive such madness?

A sequel to the 1980 game, "Berzerk", Frenzy once again has the player battling through a maze of rooms, populated by robotic skeletons, robotic octopi and walls. Everything in each room, except walls is deadly to the touch.

The object is to shoot all the robots, and then escape out of the room through one of the doorways. Like its prequel, Frenzy consist of 64000 levels. Once all 64000 have been cleared the game will crash.

Frenzy is the sequel to Berzerk and game play is similar. You are chased around a maze of rooms by various robots and your player must avoid their lasers and shoot them back to destroy them. There's only so much time the player can stay in a room before a "Robot Attacks" occurs and a smiley face of death moves in on the player. In Frenzy there are also reflective mirrors in place of certain walls which reflects shots back and allow you to ricochet your fire. Also unique to Frenzy are four "device rooms" with a special icon in the center of the room that may be destroyed for bonus points and a special effect within that room.