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