Gunter serves as the main antagonist of the season six 'Finale' (the final six episodes of the season) where he is revealed to be an ancient, cosmic entity known as Orgalorg, a godlike being who destroyed planets and ruled over the solar system. Gunter later obtains the Ice King's crown in 'Earth and Water' and uses it to create an army of snow snakes which Finn and Jake briefly battle. Also, in Gunter's first appearance, Gunter played his role as a minor secondary antagonist, Gunter tries to warn Ice King that there are intruders in his room. Gunter proves he is the most (potentially) evil entity in Ooo using the Demonic Wishing Eye. In 'Reign of Gunters,' Gunter plays the role as the main villain. Orgalorg, who resides in Gunter, serves as the main antagonist of season 6.

Gunter is revealed in the show's 6th season to actually be an ancient, cosmic entity known as Orgalorg. He is the penguin that most commonly accompanies the Ice King. Gunter is a major antagonist in the animated TV series Adventure Time. ~ Gunter introducing himself in his true form, Orgalorg. it's all yours if you're willing to take it, destroy worlds, crush anyone blocking the door, feel their bones crumple and their goo spill out. These are doorways the universe presented to me. Glob KO'ing himself, the arrival of the Catalyst Comet, and a ship to carry me out of this planet's gravity.

Gunter adventure time