Classification Creatures
Residence The Underworld
Real world information
Appears in The Grim Adventures of Billy & Mandy
First appearance "Something Stupid This Way Comes"

Nergalings are small (just a bit smaller than Billy and Mandy) creatures that look like Nergal. They are mutant/monsters just like Nergal. They appear in Love is Evol Spelled Backwards, rushing out when Nergal's house/spaceship/car door opens. They also appear in Something Stupid This Way Comes, where Nergal fails to make friends again, and uses his tentacles to turn everyone into mutant/monsters. If you look really closely at the part where Nergal sings "Friends", the mutant/monster directly behind him is a Nergaling.

They later appear in the The Grim Adventures of Billy and Mandy Video Game as enemies that attack you in the level called Underworld. You can also unlock him and play as a Nergaling.