Glimmer is a Phosphoro Slug who belongs to Eli Shane. She was first seen in the episode "The Journey Home", along with Suds to battle Munch. Glimmer reappears in "It Comes by Night" when she's used against the High Plains Monster. In Slugisode: Bee Cool, Dude she debuts as a MegaMorph Protoform.
- Protoform Abilities - Flashlight/lantern.
- Arcalyte - Explodes in mid-air in a shower of sparks.
- Flashbang - Blinding flash of light to stun and temporarily blind an opponent.
- Beamblaze - Focuses several beams into one concentrated blinding beam blast.
- Blazerain - A 'hail' of short beam bursts.
- Supernova: "Glimmer"+"Burpy" - The slugs spin, while the Phosphoro starts lighting up, the Infurnus boosts the light.
- A Distant Shore (First appearance)
- The Journey Home
- The Gentleman and the Thief
- The Hard Part
- The Return
- It Comes by Night
- Light as Day
- Glimmer likes to play with Eli's hair.
- When Spinner makes a yoyo around Eli's fingers, Glimmer plays on and in it.
- She gets along with Suds.