A man with peach skin, and a beard. He has a white hat with his first annitial on it, and a white shirt under red overalls. He also wears brown boots.
- "Luigi's Day Off" (debut)
- "The Dream"
- "Dobi's Birthday"
- "Yoshi Gets Pregnant" (mentioned)
- "The Promotion"
- It is revealed that Fire Mario sneaks in Luigi's bedroom in "Luigi's Day Off".
- In "The Promotion", it is revealed that Fire Mario has a sugar rush as soon as he has sugar.
- It is revealed in "Dobi's Birthday" that Fire Mario thinks that Fortnite is obnoxious and doesn't play it.
- It is revealed in "Luigi's Day Off" that Fire Mario has been to court.
- In "The Dream", it is revealed that Fire Mario hates jumping jacks.
- In "The Promotion", it was revealed that Fire Mario has a sweating problem.
- It was revealed in "The Promotion" that Fire Mario goes crazy when he eats sugar.
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