>>91528266He was a One Man Army Corp created by the Global Peace Agency. I would assume that they created him to look threatening so their enemies would be scared. OMAC was created in the 70's, so his hairstyle might have been a bit of an older man projecting his fears of the emerging youth culture (punk) onto his character. Kirby was also a WWII veteran and, according to Wikipedia, some soldiers wore their hair in a mohawk style to intimidate their opponents.