|Relatives||Big Monster, Massive Monster|
|Introduced In||Finn's Missing|
Giant Monster is a character who was first seen in Finn's Missing. He was one of the monster where Jake, Lady Rainicorn and BMO came across and fought. His height is between those of his brothers.
Giant Monster is a giant purple puffy monster. The head looks like a cloud or even a lumpy and has four eyes. He has two arms and two legs, around the whole body are small orbs attached.
Giant Monster has immense strenght and can shoot hard orbs with his telekinesis.