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