This mecha paper model is Gunter, the penguin that most commonly accompanies the Ice King, based on the American animated television series Adventure Time, the papercraft is created by WebDude. There is another Gunter papercraft on the site available: Gunter Papercraft Ver.2.
The Ice King uses Gunter as his personal servant, whereas the other penguins working for the Ice King are essentially slaves.
Gunter is a vandal penguin who doesn't care about what he/she breaks, shown in "Still." But in Gunter's first appearance "What is Life?," Gunter was helpful and tried to warn Ice King that Finn and Neptr were in his room. At times, Gunter can be neutral. In "Reign of Gunters," Gunter was evil and intended to conquer Ooo. Gunter can also be annoying seen in "Five Short Graybles" when he/she kept playing the keyboard. But, Gunter can also be fun shown in "Princess Potluck" when he/she joined the potluck and danced. For more information please click here.