Part of the first wave of Prime: Robots in Disguise Weaponizer Class toys, Optimus Prime is a large toy, similar in size to Leader Class figures from previous Transformers toylines. He features a simpler transformation and design compared to previous Leader-sized figures, with him having fake chest windows (again) and a simplified, hollow truck rear where his feet, arms, and fake chest windows are plainly visible. He comes with a blaster which can mount onto his hands, shoulder-pads, and the sides of his legs/truck rear.
Originally, the Alternators Dodge Ram mold was intended by Hasbro to be a completely different character altogether than Optimus Prime (which character is unknown), but Takara reportedly demanded the Ram be made into Optimus out of fear that the toy (whose vehicle mode is scarce in Japan as a real vehicle) wouldn't sell as well in their market if it wasn't a popular and easily recognized figure; as the figure reportedly cost twice as much to build as the others, Hasbro had to agree in order for Takara to continue fronting part of the production cost. In an ironic turn of events, the Dodge Ram was prematurely solicited by Takara not as "Convoy" (Optimus Prime), but as his Masterforce look-alike Ginrai. As a matter of fact, the head sculpt for the Alternators Oprimus Prime toy is based on the Super Ginrai (Powermaster Optimus Prime's "super mode") toy's head sculpt. Ultimately, however, Ginrai was cancelled, with only Hasbro releasing Optimus Prime as originally planned. Eventually, Takara released the Dodge Ram as as part of the new Kiss Players line, now named "Convoy" (Optimus Prime), and he will be released in Binaltech this year.
Billed on his packaging as "BIGGEST Optimus Prime Toy!", Ultimate Optimus Prime consists of an articulated tractor-trailer. The cab can transform into a "normal" Optimus Prime on its own, roughly equivalent to a Voyager in size and complexity, though with a lower degree of screen-accuracy than most large Optimus toys. Prime has 5mm fist holes, as well as additional 5mm ports on his front wheel wells and both sets of external fuel tanks. Four of these remain available in robot mode. The trailer has twelve more 5mm ports. Despite this, the toy comes with no weapons scaled such that the cab-only robot can usefully wield them.
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.