Do you want to compare Onslaught with Spectrum? Discover the powers, weakness & weapons of Onslaught and Spectrum from Onslaught Biography and Spectrum Biography. Find out all about Onslaught and Spectrum.# Check out how is Onslaught unique and distinct from Spectrum. Discover their love interest, sidekicks, family tree and the movies and games list in which Onslaught and Spectrum have appeared. Find out everything about them here!