Doom II' has held a hidden secret for more ... Then, later: "This trick has something to do with the moving door and the pain elemental spawning a lost soul on top of you. This forces you down ...

Fan-favorite classics such as the Pain Elemental, Archvile, and Arachnotron make their return, while a horde of totally-new demons join the roster including the DOOM Hunter and corrupted Marauders.