Bio Menace

Bio Menace is a 2D, side-scrolling, platform game developed and published by Apogee Software for DOS. It was set for release in November 15, 1991 but due to re-configuring the engine that was used in Commander Keen in Goodbye, Galaxy, it took two years to develop. It was built on a licensed version of id Software's Commander Keen game engine, and was known as Bio Hazard during production. Apart from the engine and music, all in-game content was created by the game's designer. (Wikipedia.org)