She has a black back, black, flipper-like wings, and a white flat belly. Gunter looks like a regular penguin with big black eyes. Guntar is only stopped when the Ice King returned from his outing, scolding her for taking his wishing eye and telling her to go back to the castle. At first glance this was a harmless quest for self entertainment, until she tries to break the head of one of the Gumball Gardians, proving that Gunter had no sympathy for those who stood in her way of world conquest. In 'Regin of Gunters,' Gunter proves she is the most (potentially) evil entity in Ooo, excluding the Lich, by using Ice King's demonic wishing eye to conquer Ooo and destroy all of its glass objects. In 'Princess Monster Wife,' only one penguin is called Gunter and many other penguins are addressed with similar, though different, names. It also shows that Gunter can play the keyboard, though not very well. In 'Five Short Graybles,' Ice King makes Gunter float out to sea on an iceberg because he believes that Gunter is making his cave smell bad. It is unknown whether this was intentional by the show's staff, but this is the main in-show evidence suggesting that Gunter is not a specific penguin. Gunter appears multiple times in 'Holly Jolly Secrets Part I' and 'Holly Jolly Secrets Part II.' Notably, during his/her 'Penguin Dance Party' video, Ice King calls two different penguins 'Gunter' in the same scene. She is shown to be a troublemaker in this episode. Ice King says that Gunter likes to break bottles, which Gunter eventually does. Gunter re-appears in the episode 'Still' trying to mess with the potions Ice King brought to freeze Finn and Jake. Gunter appears in 'The Chamber of Frozen Blades' and is very sick, but it later turns out that she was pregnant and the egg hatches revealing a floating pink kitten.

The Ice King's response is 'Gunter, who told you you could fly?' Gunter appears again in 'It Came From the Nightosphere,' where his/her soul is almost stolen and is dubbed 'by far, the most evil thing I've encountered' by Hudson Abadeer, and thrown at the Ice King. Gunter is mentioned in 'What Have You Done' when Ice King says, 'Gunter, dispose of Finn's carcass.' Gunter also tried to warn the Ice King that Finn and Neptr were in the room. In 'What is Life,' one of Gunter's known duties is being used as a stand for the Ice King's video game machine.

Gunter adventure time