bowser hands down could beat the egg man. first bowser can spit fire witch would fry any of Robotnic suites not only that bowser is really big so all he would have to do is jump on Robotnik. also aparently bowser’s skin is lethal to humans cause every time Mario touch him he would die. so I would the same holds true Robotnik. now lest get back to the jumping factor it takes sonic eight hits on average to destroy Robotnik 's armor one jump from bowser would totally demolish the egg man since bowser is 5 times larger than sonic |