Monkey skull

The monkey skull can be seen in an inaccessible room packed with Monkey Zombies in the Temple of Marimbo Dungeon under the Temple of Marimbo on Ape Atoll. It is impossible to obtain because the 'locked door' to the room is (according to the minimap) a wall. This also means that it is impossible to cast Telekinetic Grab here.

This skull can be used to create a monkey greegree that allows the player to transform into an ape similar to the bearded gorilla greegree with a blue face.