In the 8636 Mission 7: Deep Sea Quest set, he is clad in a diver's suit, and has a slime-coated face. His eyes have a "mad-scientist" look. Like Dr. Inferno's other henchmen, he is unique. Although he is not included in the Agents 2.0 sub-line, he appears notably similar to Dr. D. Zaster.
He has been featured in one plot by Dr. Inferno. There was a chest full of diamonds in the ocean and Slime Face was sent to retrieve it along with Break Jaw.