This game is based on original Doom design document. The project aims to recreate the game as it was intended. It will include the original six episodes, new weapons and enemies. More details on the links. We are in needing of additional mappers, and artists, hope some of you could help us.
This was an idea that Tom Hall had for a powerup in Doom and it was never implemented. Needless to say, it's an awesome powerup.