147 METAL MONSTER. Fragments of metal wreckage are scattered about. When the room is entered they will fly together and make a man-sized monster of metal with a vaguely crab-like shape.
Giant Crab Machine (AC 0; MV 9”; HD 6; hp 30; #AT 2 claws; D 3-12/3-12; SA Surprise on a 1-4; XP 405)
As the monster is damaged, parts will fly off. At the center is a metal cylinder with a plus (+) sign on it, about the size of a thermos.