This agenda led the Predacon Megatron to attack the comatose Optimus Prime in stasis on prehistoric Earth, forcing Primal to take Prime's Spark into his body in order to preserve his life while his body underwent repairs. Primal was subsequently mutated into the massive "Optimal Optimus" form, which shared elements of Prime's form, prior to returning the Spark to its rightful place. The Maximals were occupied throughout the remainder of the series protecting Prime and the other Transformers aboard the crashed Ark until the Predacons were defeated. Various monuments to Optimus Prime appeared on Cybertron in Beast Machines, one of them a holographic statue in Iacon that Megatron took control of in order to trick Primal.
A limited edition of the Optimus Prime toy sold as a mail-away exclusive by PepsiCo was made available in North America in 1985. This version of the figure came with a small fold-out leaflet glued to the top-right of the packaging, which contained two Pepsi logo stickers for the buyer to attach to Prime, mid-way through the traditional silver-and-blue stripe on his trailer. Canada also got a version of this promotional figure, but with much larger stickers that were the full length and height of the trailer. This promotion would go on to serve as the inspiration for the Japanese character of Pepsi Convoy, who would in turn be released by Hasbro as a new "Pepsi Optimus Prime" in 2007.

Featuring a complex transformation, essentially the front and back ends of the truck fold and converge to become Optimus Prime's legs, as much of the truck rear is connected to the robot thighs via a series of folding panels. The rear wheel cowlings feature a hinge joint in the middle of them so they do not impede his knee articulation. The rear cabin of the cab, directly connected to the smokestacks, rotate and connect to his torso and unfold into his arms. As with most mainline Movie toys, Optimus Prime features Automorph gimmicks, and due to his pricepoint has three of them. Firstly, during initial transformation, rotating his front fenders to become his heels flips the top parts of the grill to become his toes. Secondly, sliding out the double-barrel cannon in his right forearm flips out his spring-loaded Ion Blaster, which lands into place for his right hand. (The Ion Blaster can actually be popped off his forearm fairly easily, held in place by a simple clip.) Optimus' final Automorph, located in his torso, is activated by flipping the silver lever on his stomach activating a series of spring-loaded actions where the truck windows are pushed apart, and the lever between them is raised, enabling the head to spring up from the chest cavity. At this point yellow LEDs light up the chest windows and Optimus Prime's eyes, accompanied by a "powering up" sound effect.
Millions of years later, Optimus was one of the thirty-five Autobots rebuilt into modern machines by the ship"s computer. Some time later, Jazz reported that he had spotted Decepticon activity at a nearby construction site. Optimus decided to take a proactive angle to their war with the Decepticons, and led the entirety of his troops to the Decepticon base. Once there, they found themselves allowed in by Megatron, feigning a friendly demeanor. Not fooled by Megatron's claims that he was making an honest living heading a construction company, Optimus engaged the evil robots in combat, before being blasted out of the Decepticon base. Optimus and his troops were sent tumbling down the cliffside beneath their feet. The Autobots suffered only minor damage from the fall, and after getting patched up, moved out once more to stop Megatron's plan, now well under way. Megatron was holding millions of humans hostage in a bid to get the Earth to surrender unconditionally to the Decepticons.

The TakaraTomy "Autobot Alliance" release of this toy has some significant differences, including casting the red plastic in a darker shade, making his shin and wheel joints grey rather than Hasbro's bronze, painting the Matrix of Leadership silver, and swapping out the dual energon swords for battle hooks, similar to 2010's Leader class Optimus Prime. However, due to the Japanese release retaining the Hasbro packaging, the box still advertises the dual energon swords rather than the hooks. He retains the masked face used for the Hasbro release.
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