Fryguy (also spelled Fry Guy or FryGuy) is the boss of World 4 in Super Mario Bros. 2. He is a ball of fire given life by Wart in Subcon. Fryguy first appeared in Yume Kōjō: Doki Doki Panic.
Super Mario series
Super Mario Bros. 2
During the events of Super Mario Bros. 2, Fryguy, a living flame, is the boss of World 4, an icy arctic ocean; he is stationed in a tall fortress at the end of World 4-3. When confronted by Mario and his friends, Fryguy spits fireballs down to attack the heroes. Since Fryguy is made of fire, the heroes take damage if they touch him. To defeat Fryguy, Mushroom Blocks (masks in Yume Kōjō: Doki Doki Panic) must be thrown at him. After three hits, the battle enters the second phase, as Fryguy splits into four Small Fry Guys, which must also be extinguished. Between the NES version and later versions, his sprite is heavily redrawn, causing his eyes to become more open, his mask to turn from black to light blue, and his flame arrangement to change and have twice as many animation frames. Additionally, his face is a separate graphic from his body in the later versions.
In Super Mario Advance, he is shown being seemingly created on-screen by four of Wart's giant bubbles; however, instead of fire (as mentioned in the manual), the bubbles form him from an empty version of his mask. He is also voiced by Charles Martinet in this version of the game.
BS Super Mario USA
Fryguy appears once again as a boss in the pseudo-sequel, BS Super Mario USA. He helps Wart and the other 8 bits attack Subcon once more, but is eventually defeated by Mario and the other heroes once again. Like the predecessor, he is found in the snowy lands of Subcon and he is fought in a very similar way to that of Super Mario Bros. 2.
The Super Mario Bros. Super Show!
Fryguy is a character in The Super Mario Bros. Super Show! Like many enemies on the show, he works for King Koopa, as opposed to Wart (as in the video games). Fryguy does not appear as much as other Super Mario Bros. 2 enemies on the show.
Nintendo Comics System
Fryguy also appear in the Nintendo Comics System's Mario comics. In the comics, there is not just one Fryguy, but multiple. Instead of being created by magic, these Fryguys are instead created when Mushroom People become engulfed in fire or lava. In one comic story, Duh Stoopid Bomb!, a sole Snifit becomes a super-genius after being exposed to one of Bowser's inventions. This Snifit then performs a coup and takes over Bowser's Castle. After the coup, Bowser is expelled to "Fryguy Kindergarten". Another page mentioned a "Fryguy High School", with events such as a "hot baseball team that threw sixteen consectutive no-hitters".
Nintendo Adventure Books
Mario, Luigi, and Yoshi encounter Fryguy in volume 8 of Super Mario-Kun. He and his minions attempt to cook them in a soup, but Toad and Birdo arrive by breaking through the sky, riding on a whale, which then flattens Fryguy and his minions.
In the Super Mario Bros. film, the flamethrowers used by Koopa and his minions are referred to as "Fryguy Flamethrowers."
In Super Mario Bros. & Friends: When I Grow Up, the description of the Firefighter career page reveals that Fryguy has started a fire. This Fryguy lacks a mask, instead having bushy eyebrows.
Names in other languages