Fire-breath
Fire-breath is an ability that several Transformers with reptilian or monsterous beast modes have installed in themselves for combat in their alt modes.
Fiction
Generation 1 cartoon continuity
The Transformers cartoon
The Dinobots had fire-breath included in their alternate modes. Although they all possessed the ability, Grimlock and Slag were the only ones that really employed it. Slag used his fire-breath to help repair the Washington Monument, Atlantis, Arise! and Wheeljack had Grimlock demonstrate his mastery of his fire-breath by adjusting Blaster's volume levels. Later, while practicing on Dinobot Island, Grimlock had Slag practice his "fire stuff" (Grimlock's words) by evaporating a pond. Slag displayed good moves. The local wildlife was not amused. Dinobot Island, Part 1 Later, Slag's fire-breath saved the Dinobots by evaporating the tar pit they had sunken into, but it made him rather tired. Dinobot Island, Part 2
During the brawl among the Primitives, Grimlock showed the uppity Decepticons not to insult him by unleashing his fire-breath upon them. The Decepticons hit started to cough... cause that's what happens when you get hit with fire that can melt body armor. Call of the Primitives
Japanese Generation 1 cartoon continuity
The Headmasters cartoon
The Monsterbots also had fire-breath, based on their toys' gimmick to fire "cold" sparks. Head Formation of Friendship
Super-God Masterforce cartoon
The Sparkdash all displayed the ability to breath fire, based on their toys' gimmick to fire "cold" sparks.
Victory cartoon
The Decepticon Emperor of Destruction Deathsaurus made use of fire-breath in at least one battle with his hated rival Star Saber. The Tide Is Turned! The Ultimate Weapon, the Victory Unification
Marvel The Transformers comics
Skullcruncher breathed fire when he attacked a city on Nebulos.Broken Glass!
Toy bios
As a point of fact, Slag's very function is "flamethrower".
Beast Era
Beast Wars cartoon
After becoming a Transmetal 2 dragon, Megatron possessed a new ability called Blast of Flame,[1] in one word, fire-breathing. He was also capable of shooting sub-zero blasts which were called "Blast of Cold".[1] Megatron likes to keep his enemies on their toes. Yessss... Master Blaster
Beast Wars Neo manga
Cohrada used fire-breath as a sneak attack on Dead End, but the Predacon dodged the attack.There Are 7 Capsules
2001 Robots in Disguise cartoon
Megatron's dual-headed dragon mode possessed an attack named Twin Dragon Breath, which consisted of fire-breath. He first used it on Rail Racer after Team Bullet Train saved the Linear RFG. Bullet Train to the Rescue Gas Skunk's acid breath was once ignited by Railspike, giving him fire-breath for a few minutes, much to his alarm. He chased Slapper and Dark Scream around until he ran out of fuel. The Secret of the Ruins
Cybertron cartoon
Scourge's Cyber Key weapon was a pair of smaller dragon heads capable of breathing fire. This attack caused severe damage to Overhaul in their first battle.
Animated cartoon
Megatron had fire-breath installed in the Dinobots, intending to unleash it against the humans and Autobots. When Isaac Sumdac confronted him about its presence, Megatron claimed that his desire to have a body once more compelled him to experiment by installing the fire-breath as one of several "features". Sumdac bought it hook, line, and sinker. Blast from the Past
Aligned continuity family
Fall of Cybertron

As Shockwave's prized test subject, Grimlock received numerous upgrades and powers, including the ability to breathe fire in his Tyrannosaurus form. Fall of Cybertron
Rescue Bots cartoon
A mechanical bull developed for humans to ride could shoot fire from its nostrils. The Island of Misfit Tech
2015 Robots in Disguise cartoon
Crazybolt can breathe fire in his robot mode, or spray a trail of flaming exhaust in vehicle mode. Suspended
Age of Extinction film

Grimlock used fire-breath right after he transformed into a T-rex, and later he used it to attack Galvatron's minions. Age of Extinction
Beast Wars: Uprising
Twinstrike could breathe fire thanks to internal reserves of phlogiston. Derailment
IDW Generation 1 continuity
The Firecons possessed natural, fire-generating abilities that brought them together as a group. During the war, they battled both the Wreckers and the Dinobots on Varas Extrinsecus and Varas Centralus. Decepticon military science also reverse-engineered their abilities to create reproducible infernus bullets.
Commercial appearances
Trypticon once attacked the Protectobots with a blast of fire-breath. Trypticon commercial
Notes
- In the mirrorverse realm of Shattered Glass, Dinobots possess ice-breath.

