A gorilla greegree allows a player to turn into a gorilla while on Ape Atoll. While in this form, a player, using a rope, can pick red bananas needed in Recipe for Disaster. To make a gorilla greegree, a player must take monkey bones from a Monkey Guard and a Monkey Talisman to Zooknock.
There are two different types of Gorilla greegree. It depends on which type of gorilla's bones used. If players used the bones from the level 167 bearded gorilla they will receive the bearded gorilla greegree. If players used a regular gorilla greegree they will get the unbearded version.
Overall there are 8 greegrees, including the large and small ninja greegrees, large and small zombie greegrees, bearded, blue faced and normal gorilla greegrees and the Karamjan greegrees.