Mucky is a Dirt Urchin Slug who belongs to Eli Shane. He has been seen in many episodes, pictures, and Slugisodes, although Eli rarely uses Mucky in combat. He is only been shot in "Lightwell" with a Fusion Shot with Joules.
- Protoform Abilities - Can stick like a burr.
- Sandburr - Curls up into a spiky ball and hits opponent.
- Chortlesnort - Shoots spikes like a porcupine.
- Needlepatch - Explodes in-air, firing multiple rounds of spiny needles.
- ElectroSpear: "Mucky"+"Joules" - Once the slugs start spinning, electrified needles are shot out.
- The World Beneath Our Feet Part 2 (First appearance)
- The Gentleman and the Thief
- Light as Day
- He is often seen riding on the bubbles created by Suds as seen in "The Gentleman and the Thief".
- He was first fired in "Lightwell" as part of a fusion shot with Joules.
- Mucky thinks it's fun to pop the bubbles Suds make.