After the Great War, Optimus Prime disappeared with other legends into the mysterious location on Cybertron dubbed J'nwan, where Optimus himself became the "Authority" who spoke on behalf of the others. Sandstorm, the leader of a rebellion in a 32nd-century firmly under the heel of the tyrannical Shokaract, entered J'nwan to plead with the heroes of Cybertron's past for aid. He hoped to convince them to join the fight against the Predacon warlord. After a mind-crushing journey which left all of his companions dead or deranged, Sandstorm finally found an audience with the Authority and his brethren, but they declined to help, with the Authority stating that their time was past and the war was no longer their war. The Authority then in some way manipulated Sandstorm's trip out of J'nwan such that it was comparatively short and simple. Paradox
Eject lamented that all the great and famous Cybertronians, including Optimus Prime, were long gone by the time Cybertron was controlled by the Builder Assembly. Broken Windshields The Maximal Overshoot experienced a series of visions from Cybertron's past after discovering the Oracle, including Optimus Prime launching the Ark during the Great War. Cultural Appropriation
During the three-part "One Shall Rise", Optimus uses the Matrix of Leadership to defeat Unicron. Unfortunately, in doing so, he not only emptied the wisdom of the Primes, but lost his own memories as a Prime, believing himself to be Orion Pax once again. Megatron took advantage of this to manipulate Orion into deciphering Iacon records the Decepticons have stolen from Cybertron. Eventually, Orion figures out the truth and escapes. Jack is later able to restore Optimus' memories after downloading the wisdom of the Primes from Vector Sigma into its key which Optimus gave him before he left to stop Unicron. However, Optimus could not recall the time he spend as a Decepticon.
An extensive redeco of the Protoform Optimus Prime mold that was exclusively available at the Japanese C3xHobby Convention in August of 2007, and later offered by e-Hobby in limited quantities. Most of the body is made out of transparent turquoise plastic in order to mimic its frozen state in the "coldness" of space, while orange paint is used on the front end of the "entry" mode, mimicking the heat effects of sudden atmospheric entry. The flame attachment is made out of clear blue plastic, with the tail end being covered in gold paint.
Part of the first wave of TakaraTomy Go! toys, Hunter Optimus Prime is a redeco of the Voyager Class Beast Hunters Optimus Prime toy. His red and blue plastics are now cast in metallic shades, his translucent green plastic has been replaced with translucent blue, his yellow highlights are more orange-yellow, his yellow-painted side windows are now blue, and his gray plastic is now cast in two different, darker shades. The Matrix Saber, aside from being blue, uses a bluer shade of gunmetal paint for its hilt and handle.
In addition to the small engine-pistol of his Alternators figure, Prime comes with the "Surfblade", a pink surfboard that can be reconfigured into either two small knives or a large double-bladed sword. As with all the Kiss Players figures, Prime also comes with a PVC figurine of a cute girl: in this case, Marissa Faireborn, who can perch upon his shoulder or sit in his driver's seat, and comes with two pairs of interchangeable arms and legs. Additionally, the set includes a CD featuring the first five episodes of the Kiss Players radio drama, as well as the exclusive bonus audio adventure, "Someday, Under the Sun."
In another possible sequence of events, the trio returned to Autobot headquarters to relate their findings to Optimus Prime. The Decepticons planned to use a Destruction Beam to create a fault line near Center City, which would in turn be exploited by Rumble’s earthquake-inducing abilities to destroy the entire area. The Autobots then decided to split up in two groups, one to attack the Decepticons’ fortress, the other to stop Rumble in Center City. Optimus headed the lead team.
The details between these events differ between universes. Sometimes Optimus Prime merged with Vector Sigma soon after defeating the Hate Plague, and returned much, much later as Star Convoy. Sometimes Optimus Prime partnered up with Marissa Faireborn to receive upgrades through mutual kissing. Sometimes... look, he did a lot of weird stuff, okay? He later sacrifices himself to restore the Matrix of Leadership.
Optimus Prime is the fictional protagonist of the Transformers: Robots in Disguise (Fire Convoy in the original Japanese version) branch of the Transformers universe. Based on the character of the same name, Prime once again leads the Autobots against the Decepticons. His voice actor, Neil Kaplan, does his voice in a style reminiscent of that of Peter Cullen, the voice of the original Optimus Prime. Wired Magazine nominated Fire Convoy as one 12 most ridiculous Transformers ideas of all time.