
If robots remain in the maze Otto moves slowly, about half as fast as the humanoid, but he speeds up to match the humanoid's speed once all the robots are killed. Otto can go through walls with impunity and is attracted to the player character. Otto is unusual, with regard to games of the period, in that there is no way to kill him. The function of Evil Otto, represented by a bouncing smiley face, is to quicken the pace of the game. 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. Using a joystick and a firing button that activates a laser-like weapon, the player navigates a simple maze filled with many robots, who fire lasers back at the player character. Berzerk is a multi-directional shooter video arcade game, released in 1980 by Stern Electronics of Chicago.
