and in rescuing the Mini-Con. It is noteworthy that after Starscream refuses his help, though being seriously damaged, Jetfire remarks that he is "stubborn as usual"; supposedly, he had already got to know Starscream's nature well enough. When Optimus Prime dies at the hands of the Decepticon super-weapon, the Hydra Cannon, Jetfire steps down to allow Hot Shot to assume command, retaining his secondary position even when Prime was returned to life by the power of the Mini-Cons. Jetfire goes on to participate in the "Unicron Battles," when the planet-eating giant robot Unicron attacks Cybertron, and returns the Autobots' human allies Rad, Carlos and Alexis to Earth after the battle is won. Transformers: Energon Over the ensuing decade, Jetfire (now called Skyfire in Japan) received an upgrade into a new body-form, and received the Spark of Combination from Primus, allowing him to combine with other Autobots, most frequently the rookie trooper Ironhide, who he had to carefully train and walk through the combination process. Despite his external changes, however, Jetfire remained consistent in personality and outlook, always ready with a witty remark to keep the mood light even in the middle of a pitched battle. He is once again, the second-in-command of the Autobots. When the resurrected Unicron came under the control of Megatron, Primus used his powers to permanently super-charge some of the Autobots, Jetfire included, recoloring their armor. The resultant battle saw Unicron's body destroyed, but his spark endured and possessed Megatron — now Galvatron - who grew to colossal size. In order to combat the giant villain, Jetfire and the Autobots took their Spark of Combination to the ultimate extreme, transforming their bodies into pure energy and merging with Optimus Prime, enlarging him to similar proportions and allowing him to battle Galvatron directly. Ironically it was Galvatron who was ultimately the instrument of Unicron's defeat when he plunged himself into an energon sun created by Primus in order to stop Unicron from taking over his body permanently. Transformers: Cybertron In order to recuperate after the stresses of the final battle against Unicron, Jetfire (Dreadrock in Japan, a new character there, not the same as the Jetfire from Superlink, but is still the Autobot's second-in-command) took some time out to vacation of the planet of Nebulos, where he inadvertently picked up the local accent (resembling Earthen Australian). His relaxation was brought to an end, however, when Primus's energon