Frenzy is a multidirectional shooter arcade video game published by Stern Electronics in 1982.

Frenzy's gameplay is very similar to Berzerk—the player enters a series of maze-like rooms containing armed robots and must shoot them to survive—but adds more variety.

The player can trick robots into killing themselves by standing on the opposite side of a reflective wall and letting them shoot it.

The only wall that simply absorbs shots harmlessly like in the original is the closed door that appears behind the player when they enter a new room.

Big Otto starts out with closed eyes and a neutral expression, but kill all of the robots in the room, and his face turns into a slight frown (only in the Coleco port).

When Evil Otto is killed, his expression changes to one of rage, with glowing red eyes and a frowning mouth.

In a 1982 review, Electronic Games magazine wrote, "Frenzy passes all the requirements for a good follow-up arcade machine.

"[1] A conversion of the game for the Atari 7800 was created by Bob DeCrescenzo with assistance from original Frenzy developer Alan McNeil, and sold through AtariAge.

[2] On March 16, 2023, Atari announced that it had acquired the intellectual property rights to 12 Stern Electronics titles, including Berzerk and Frenzy.