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