|Owner||Finn & Jake|
|Introduced in||Hot to the Touch|
The Robo Suits were built by Neptr and used by Finn and Jake to protect themselves from Flame Princess' fireballs and heat. They are used purely defensively, because Finn doesn't want to fight Flame Princess. Jake uses the suit to put out a flaming cart, apparently crushing it in the process. Finn's suit (unlike Jake's) is shown to have a fire extinguisher-like ability built into one arm. Neptr readies the extinguisher through a manual overload, as he is the helmet (main part) of Finn's suit. It appears that Neptr can control the suit, but Finn continues to be able to move it himself in order to save Flame Princess from being extinguished. Finn pulls open the chest and part of the head of his suit in the end, the impact this had on Neptr is unknown. Neptr tells Finn that even if everyone had burned, Finn still wouldn't have failed him. This shows that Neptr is not upset and still functional.