Legends class Optimus Prime is an extremely simplified toy of the extremely complex movie design. As such, he features numerous unavoidable inaccuracies, such as not transforming or even looking very much like the original design or the larger toy versions in robot mode. However, proportionally Legends class Optimus Prime is not far off from the real truck and the Leader class toy's vehicle mode, aside from missing a smokestack on the driver's side. He is articulated at the shoulders and upper legs via ball-joints.
These include two large guns, patterned after the new weapons included with the G2 version of the classic Optimus Prime toy, which can be attached to the trailer in a similar fashion to those of Powermaster Prime. Also included are two additional (blue) Prime heads, sculpted explicitly in the style of Generation 2 comic artist Derek Yaniger's interpretation of Prime, especially as seen on the cover of the first issue, one pristine and the other battle-damaged.
If Optimus ordered his troops to come to the humans’ aid, they found themselves taking part in a struggle in futility, as the entire town was near-weightless, meaning they couldn’t put the humans anywhere where they wouldn’t float away once more. Then, the Autobots heard Decepticons approaching. Helpless in their current position, the Autobots were quickly eradicated by the Decepticons.