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