Grublins are enemies found in Mumbo's Mountain from the original Banjo-Kazooie. They appear as goblin-like creatures with some tribal garments and accessories, such as red feathers. Upon seeing Banjo, they will laugh and give chase, damaging him on contact. However, they can be defeated with any attack. There are only five Grublins in the world: three at the entrance area, one roaming the village, and one inside one of the huts in the village; the last of these can only be found after using Kazooie's Beak Buster ability to smash the wooden house.
Grublins additionally appear in varying sizes, though this is so subtle that it is unlikely to be noticed unless they move close together. As such, it is only truly visible with the three near the entry portal.
In earlier versions of Banjo-Kazooie, the Grublins had light blue skin and wore masks similar to that of Mumbo Jumbo's.