Grille Chompa

Grille Chompas are large, green enemies that pop out of holes in walls and attack Banjo and Kazooie.

Banjo-Kazooie
In Banjo-Kazooie, Grille Chompas are found in many worlds such as Gruntilda's Lair, Clanker's Cavern, inside Loggo's sewer in Mad Monster Mansion (where a variant called Portrait Chompa is also introduced) and Rusty Bucket Bay. When exposed, they can be easily be defeated with many attacks such as the Rat-a-tat Rap.

Additionally, the Big Cluckers in Click Clock Wood act very similarly to Grille Chompas.

Banjo-Kazooie: Grunty's Revenge
In Banjo-Kazooie: Grunty's Revenge, Grille Chompas are found in Bad Magic Bayou, Spiller's Harbor and inside Grunty Industries in the Freezing Furnace. They have different colors depending on the world they're in, being green or magenta in the first two and red in the last one.

They behave much like they did in Banjo-Kazooie, appearing from holes in the walls to attack Banjo and Kazooie and being vulnerable when exposed.