TV-Series
Description
Guyhawk, also known as Gaihawk, is a Decepticon and a founding member of the Breastforce under Deathsaurus. Cold and somber, he holds a strong hatred for those who claim to have "character" or perfect principles, particularly despising Autobots. This disdain extends to his former mercenary partner, Greatshot, whose switch to the Autobot cause he views as sickening. Despite his contempt for perceived perfection in others, Guyhawk consistently strives to present himself as perfect, boasting about his skills, being first into battle and last to leave, reacting poorly to defeat, and deflecting blame when criticized.

Guyhawk transforms into a red and white MiG-29 fighter jet, with a flight speed exceeding that of his commanding officer, Leozack. In jet mode, he unleashes a powerful storm of laser fire from above. In robot mode, his primary attack is the "Ice Needle," firing super-cooled plasma daggers capable of piercing even the toughest metals. His chest plate, the Hawkbreast, detaches to transform into a hawk-like attack partner or a handheld "Hawk Cannon" blaster. Like other Breastforce members, he is armed with an Electromagnetic Nunchaku. He combines with his teammates to form the super robot Liokaiser, serving as its right arm.

Imprisoned on the Planet Micro satellite penitentiary before Star Saber assumed command of the Autobots, Guyhawk was captured and forced to gather energy from magma rivers. He displayed a cold and selfish attitude, showing no concern for fellow prisoners and allowing one to perish in lava without intervention. The Breastforce eventually attacked the prison to free him, as Liokaiser was needed to defeat Star Saber. During the escape, Guyhawk used a concealed blade to overpower guards and reclaimed his Hawkbreast after re-energizing. It was during this event that he encountered Greatshot, leading to a fierce battle where Guyhawk used his Ice Needle to temporarily incapacitate his old partner.

After rejoining the Breastforce, Guyhawk participated in numerous energy-raiding missions on Earth, including attacks on energy plants in America and Antarctica, and an ambush on the Autobot Brainmasters in the desert. His Ice Needle attack significantly damaged the combiner Road Caesar during the desert ambush. However, Guyhawk often allowed his personal vendetta against Greatshot to override tactical considerations, impulsively pursuing him during missions and sometimes forcing Decepticon retreats.

Guyhawk was part of Liokaiser during major battles, including the assault on Deathsaurus's Planet-Destroying Fortress. In the final space battle, Liokaiser was blasted into the fortress's cannon barrel by Victory Leo, resulting in energy drainage and the combiner being left drifting incapacitated in space.

In the Legends comic, Guyhawk witnessed Sixshot's imprisonment while incarcerated on Planet Micro. The Zone catalog indicated that Guyhawk, as part of Liokaiser, was later revived by unspecified means and participated in an assault on Planet Zone under Deathsaurus's leadership in an attempt to steal Energon Z, though the Decepticons were repelled by Micromasters.

The Victory comic shows Guyhawk initially reporting to Deathsaurus about Leozack's solo missions. He later combined into Liokaiser to battle Star Saber on Energy Planet X, where internal arguments among the Breastforce components allowed Star Saber to gain an advantage. Guyhawk also participated in subsequent battles, including those involving Victory Saber, and was part of the final Decepticon attack on Earth involving meteor bombardment.

Guyhawk's tech specs list his function as an Aeronautical Soldier, with high scores in speed and intelligence, and a total rating of 65. His profile describes him as a sore loser and perfectionist who sees himself as the top member of the Breastforce, often using Hellbat as a scapegoat.