In robot mode, Voyager class Optimus Prime is proportionally more accurate to his CGI design than the leader class toy and has a more accurate headsculpt, but due to the aforementioned lessened complexity significant sacrifices had to be made, such as "cheats" to the transformation sequence, to achieve this and thus he is overall less accurate than he initially appears. In addition to previously mentioned changes, he carries much of the truck's front hood, grill and fenders on his back like a backpack. However, he maintains a superb level of articulation and posability.
The 5-inch Power series is a little more complex (4-9 steps) and a little more spoilery, because it’s the first hint we’ve gotten that Megatron might be a part of the Transformers: Bumblebee movie. Sporting a similar form to previous versions, his alt mode is a 4-track Cybertronian tank (with the usual very conspicuous face…funny how a lazy toy design decision from the first movie has now become cannon). The Power series also has the only Dropkick Energon Igniters toy. You can use the cores sold with the Power Plus and Nitro toys to unlock special features. Camaro ‘Bee and Hot Rod round out this series.
The third United Optimus Prime toy is a redeco and slight retool of the Deluxe Class figure from Hasbro's 2010 Transformers toyline, itself an homage to Prime's Generation 2 "Laser" form. The toy features translucent blue plastic as opposed to Hasbro's orange, red paint is used on the biceps instead of blue paint, extra red paint applications on the knees like the original's sticker detail, and more broken-up red apps on the shoulders. Silver detailing was added to the cab mode on the grill, the bumper, and near the doors. The blue plastic in cab mode is now black plastic to make the figure more accurate to the Generation 2 original. The gray plastic is changed from the Hasbro version to more closely match the 2006 reissue of Laser Optimus Prime. Black paint was applied to the cab mode to mimic the fade from red to black on the original Laser Optimus, but still includes a flame deco like the Hasbro version, only in a different design. It lacks the roof-mounted rubsign of the Hasbro version, instead including Autobot insignias on the cab doors. (Disappointingly, they are Generation 1 insignias, rather than Generation 2 ones!) Additionally, a retool was made to the peg on the inside of his right shoulder, to make it shorter and wider than the Hasbro version, allowing it to move freely without hitting the torso, unlike the Hasbro release.
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.