Dr. Chaos is an action-adventure game

Action-adventure game

An action-adventure game is a video game that combines elements of the adventure game genre with various action game elements. It is perhaps the broadest and most diverse genre in gaming, and can include many games which might better be categorized under narrow genres...

 originally released in Japan

Japan

Japan is an island nation in East Asia. Located in the Pacific Ocean, it lies to the east of the Sea of Japan, China, North Korea, South Korea and Russia, stretching from the Sea of Okhotsk in the north to the East China Sea and Taiwan in the south...

 for the Family Computer Disk System in by Pony Inc

Pony Canyon

is a Japanese company, established on October 1, 1966 , which publishes music, DVD and VHS videos, movies and video games. It is a subsidiary of Japanese Media Group, Fujisankei Communications Group.-History:...

. An English localization was produced for the Nintendo Entertainment System

Nintendo Entertainment System

The Nintendo Entertainment System is an 8-bit video game console that was released by Nintendo in North America during 1985, in Europe during 1986 and Australia in 1987...

 that was released in North America by FCI

Fujisankei Communications International

Fujisankei Communications International, Inc. is the American arm of the Fujisankei Communications Group , an important Japanese media conglomerate of television and radio channels, magazine, newspaper, record and video game companies. The Fujisankei Communications Group owns about 100 companies,...

in .

Gameplay

The player assumes the role of Michael Chaos, brother of mad physicist Dr. Ginn Chaos, who has been doing Warp Zone experiments in his mansion and gone missing. Armed with only a Knife in the beginning, as Michael moves through the house, he can pick up Handgun Bullets, Machine Gun Bullets, Grenades and life-replenishing Yellow Vitamins and Red Vitamins. There is a menu which has four options, open, get, go, and hit. There are 11 Warp Zones in all. At the end of each of the first 10 Warp Zones, Michael must fight a large monster that carries a piece of the Laser and guards a valuable piece of equipment, the latter consisting of the Ultra Space Sensor, four Life Bottles, the Air Helmet, the Jump Boots, two Blue Vitamins and the Shield Suit. Once Michael fully assembles the Laser, he'll be able to challenge the final boss, Canbarian.