The Eggs-O-Skeleton is a hi-tech battle-suit created and used by Dr. Robotnik in Archie Comics' Sonic the Hedgehog. During the three-issue mini-series Sonic Quest: The Death Egg Saga, Robotnik donned this suit to combat Sonic the Hedgehog when the hero boarded the doctor's Death Egg airship.
The Eggs-O-Skeleton's design was based on the facade of the Death Egg and its bio-systems were psionically linked to the Death Egg's own systems. Since the Death Egg was fuelled by a large supply of Power Rings, this provided the suit tremendous power, multiplying Robotnik's physical strength exponentially. Robotnik was also able to fly using the suit's jet boots.
Wearing the Eggs-O-Skeleton, Robotnik battled against Sonic when the heroic hedgehog had commandeered the giant Silver Sonic robot. However, Sonic was able to throw Robotnik out off the Death Egg. The flying fortress self-destructed shortly after, causing the Eggs-O-Skeleton to power down. Robotnik would have fallen to his death had he not used his cape as a parachute.