Minecraft wiki entry for Golem, associated text: Icy Golem - a hostile mob created by Romeo that are a cross of iron and snow golems
Larger Icy Golem - a large boss variant of the Icy Golems and one of the challenges of Romeo
Prison Golem - a neutral mob created by Romeo and used to keep prisioners on their places
Magma Golem - a hostile mob created by Romeo and used as challenges for himself, Xara and Fred
Giant Magma Golem - a gigantic boss created by Romeo as the final challenge for himself, Xara, and Fred