As leader of the Autobots, Prime headed up their mission to search for new sources of energy to revitalize the depleted Cybertron. Optimus vowed to Elita that he would return from his mission for her, but just before the launch of the Ark, Optimus was mistakenly led to believe that Elita was killed. Shortly after its launch, the Autobots' craft was attacked by the Decepticons' space cruiser, the Nemesis, and boarded by Megatron and the Decepticons. In the ensuing struggle, the G-forces of a nearby planet pulled both craft down, and the Autobots' ship crashed into a volcano, thrusting all the occupants into emergency stasis. Four million years later, in the Earth year 1984, a volcanic eruption jarred the ship's computer, Teletraan I, back to life. The computer reactivated the Decepticons, programming them with new Earth-based disguise modes. As a parting gesture, Starscream fired upon the Autobot ship, creating a landslide. The vibrations from that landslide knocked Prime into the path of the computer's restoration beam, restoring him to life, thus beginning the war anew on Earth.
Part of the first wave of Age of Extinction Custom Kreons, this Optimus comes with a buildable parts rack on which to hang/store his many many extra pieces. His "normal" helmet and blaster are chromed, plus he comes with an extra clear-plastic helmet, torso and legs. He also has a pair of extra arms (originally from the Kre-O Battleship aliens) plus a spare hand, as well as a buildable battle-axe, a buildable smokestack-pack, and an extra Wheeljack-style wing-pack.
He is designed with a removable head, biceps, arms, and legs, all of which use the same clip-peg/hole joint. This means his pieces can be swapped around in any order, as well as swapped with any other Hero Mashers figure... which includes figures from Marvel Comics, Star Wars, and Jurassic World, meaning you can make some pretty freaky combinations.

The Optimus Prime Battle Rig Blaster transforms from a superdeformed amalgamation of his Movie truck and G1 Optimus Prime's truck (indeed pulling G1 Prime's trailer) to a fully G1 robotic forearm and hand with a built in Nerf style gun. By simply placing your hand inside the back of the trailer (I need an adult!) and pulling back on the front of the truck, the gun transforms and folds back into a weapon. It comes with three Nerf N-Strike size whistle darts which can be stored inside the trailer. Although not shown in the image, the truck front splits in half in gun-mode, while the grille acts as a sight. This toy was marketed as 'Optimus Prime Big Rig Blaster' overseas.

Jetwing Optimus Prime is a retool of Revenge of the Fallen Leader class Buster Optimus Prime, with an accompanying large jet pack and massive dual Gatling Cannons. The base Optimus Prime figure has several modifications including: a new stomach area and elbow flares to reflect the changes to Optimus Prime's CG model in Dark of the Moon, modified lower arms to incorporate MechTech ports and clips for the cannons, and a retooled area under his back so the jet pack can fit on more securely. The dual energon blades mounted on his arms have been removed. The toy retains Buster Optimus Prime's electronics, but batteries are not included.
Two of his limbs are based on Armada Optimus Prime; one "normal" (Inferno helmet), one pre-Earth-body (Knock Out helmet). The main torso-bot is based on Generation 1 Optimus's original body. Another limb-bot is based on live-action Optimus (Soundwave helmet), and the remaining one (Ironhide helmet)... actually looks to be based on the Optimus-like-but-not-Optimus Micromaster Overload! The heck?
Reissued in 2003 as part of Takara's Transformers Collection line of reissues. This version (#13 in the Collection series) was retooled from the 2000/2002 Rodimus Major tooling in order to make the fists and engine block hole wide enough to equip Firebolt. In addition, the original 2 guns had their posts modified so that a Targetmaster Hot Rod could still use them, if the owner chose to.

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.
1· To calculate the average price per piece in a year, I took the price per piece of each set made that year, multiplied it by the number of pieces in the set and then averaged all the weighted prices. I used a weighted average because when we are looking at the price per piece we are essentially saying we could buy x number of pieces for y dollars. Larger sets tend to have a lower price per piece so in effect you could get more pieces at that lower price that year. Note: this was done using US retail price data from Brickset.

In one Universe, Optimus led his Autobots against Megatron's Decepticons until the Cybertronian civil war led to the creation of the monstrous combiner Thunder Mayhem. Thunder Mayhem turned on his masters, ultimately leading to him rampaging across Cybertron. History The Decepticon Toxitron was made to resemble Optimus Prime as a blow to Autobot morale and also sported a cybermetric signature that matched Prime's. The Toxic Transformer
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.
Released as part of the Single Pack assortment, Optimus Prime is a show-accurate, non-transforming die-cast vehicle based on his alternate mode. He features through-axle construction, allowing for super-speedy racing on smooth surfaces, and his car mode is compatible with many tracks and playsets from Hot Wheels and Matchbox. He features 4 wheels, as opposed to the Legion Class' 6 wheels & his larger toy's 10 wheels. Optimus Prime also comes with a collector's flyer.
Optimus Prime is primarily voiced by Peter Cullen in most of his incarnations, who voiced him in the original series. Following the production of the 2007 film, Cullen reprised his role for the sequels and supporting media and would even voice Optimus in later series such as Transformers: Prime. Optimus has been voiced by a number of other voice actors in other series such as Neil Kaplan, Garry Chalk, and David Kaye in the series Transformers: Robots in Disguise, Unicron Trilogy, and Transformers Animated, respectively.
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.
Transformers: Cybertron, named Galaxy Force in Japan, was a follow-up to the successful Armada and Energon lines. The companion anime series program was not originally conceived or produced as a continuation of the Armada/Energon storyline, and it was only later that it was retconned to be a continuation. Thus, several inconsistencies exist. Once again, a new feature was introduced for the line—Cyber Keys, which activated special functions on the figures in a manner similar to the Mini-Cons in Armada. Each figure came with a Cyber Key regardless of size, but there were several Cyber Keys crucial to the plot of the anime series which only came with certain figures. Again, many of the same characters were included but with entirely new figures from new molds.
TakaraTomy released another reissue based on the Encore version as part of their Chronicle line in 2011, lacking the original Generation 1 trailer. Instead, the Chronicle version was available in a two-pack with Dark of the Moon Deluxe Class Optimus Prime and a new trailer that could be used by both Optimuses, thanks to a retooled trailer hitch on the Generation 1 Optimus Prime figure. 
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