Dr. Chaos, officially known as in Japan, is an action-adventure game originally released in Japan for the Family Computer Disk System in 1987 by Pony Inc. An English localization was produced for the Nintendo Entertainment System that was released in North America by FCI in 1988.
Plot
The story revolves around Dr. Ginn Chaos, a mad scientist who has retreated from society in order to conduct secret experiments in his extensive mansion. His latest invention is an Interdimensional Warpgate, which grants access to another world. When his younger brother, Michael, arrives at the mansion for a visit, he finds Ginn missing. To make matters worse, the mansion's architecture is damaged and overrun with strange, hostile creatures. Michael must now survive their attacks while negotiating the mansion's many corridors in a desperate attempt to find his brother. Dr. Chaos is similar to The Goonies II.