Megatron came upon Optimus and challenged his old foe to a duel. Optimus managed to gain the upper hand, but hesitated to deliver the killing blow when he discovered that Megatron had married the Matrix to his spark, corrupting it. Several Decepticons then swarmed Optimus, allowing Megatron to blast a hole through his chest. Dead and defeated, Optimus plummeted down into the bowels of Cybertron. Pax Megatronus Rodimus and Duke travelled far beneath Cybertron, where they discovered Ultra Magnus- the Autobot god of death -carrying Optimus's body away. Earth: R.I.P.
Hasbro has had a bit of a strange relationship with Bumblebee. In the early days (we’re talking mid-’80s) he was hugely popular, both on the TV show and as a toy, and Hasbro was sure to capitalize on that. As a result, there were more different Bumblebee toys during that time and into the early ‘90s than for any other Transformer. Of course, the alternate Goldbug version helped boost the number of toys they could make.
Part of the first wave of Prime: Beast Hunters Series 3 Cyberverse Commander Class toys, Optimus Prime is an all-new mold. He now transforms into a monstrous, flat-nosed truck with spiky fenders at the front and a cage compartment at the back, and comes with the Thunder Lance and Star Saber. Each of the weapons features two differently-placed 3mm posts, allowing them to be held by his hands, or mount onto two ports on the rear vehicle sides, as well as allowing the lance to additionally be used as a pressure-fired missile launcher.
If Optimus instead followed Prowl’s plan, he instructed his troops to transform into vehicle mode and play dead. The Decepticons, believing the Autobots’ ruse, disarmed themselves in order to carry out the Autobots’ “carcasses.” Now with the element of surprise against unarmed opponent, the Autobots Transformed and were able to easily defeat the evil robots.

Transported to a parallel Universe, as the walls of reality began to crumble, foretelling the coming of Unicron to the Armada universe, Optimus Prime and Jetfire were reformatted by their Mini-Con companions using the Mini-Con Matrix into new "Powerlinx" forms. Optimus Prime and Jetfire combined to hold the chaos-bringer at bay. Unicron was eventually defeated by the united power of the Mini-Cons.
Although Rodimus plays the part of the brash youth, he is actually very intelligent, and has no loyalty to Optimus Prime; only his own personal gain. According to his biography, Rodimus used to be leader of the Wreckers, a mercenary group hired by Optimus Prime; but after the deaths of the other members, he joined the Autobot Seekers under the command of Goldbug.
The first Cybertron Optimus Prime toy transforms into a heavily-armed fire truck of made up origin, topped with two large cannons. The left fires a spring-loaded translucent blue missile, while the right features electronic sound effects and a flashing red LED. The cannons and the sides of the truck fold down to create an unlikely flight mode for the vehicle.
In the two-part episode "Megatron Rising", Optimus loses his composure over the recent numerous Decepticon attacks coupled with the fact that Prowl had secretly placed the Dinobots on an island off the coast of Detroit instead of destroying them. He has Ratchet confiscate the Allspark key from Sari, which he loses when he is ambushed by Blitzwing. Optimus also fails to stop a newly resurrected Megatron from acquiring the Allspark. He defeats Megatron by overloading the Allspark in his chest with Sari's key. In the process, the Allspark shatters into countless pieces, scattering all across Detroit.
The largest Action Master set, this incarnation of Optimus Prime is a non-transforming action figure which comes with the "Armored Convoy", a large, heavily armed tractor trailer. The cab of the truck transforms into a small jet that can seat one Action Master figure, while the trailer itself converts into a larger battle station with turrets that several Action Masters can man. The sculpt of the Prime figure itself is closely based on his character model, albeit with a coloration that seems to have been based at least partially on the small robot form of his Powermaster body.
Voyager figures all feature a spring-loaded MechTech-style transforming weapon, partially constructed from translucent plastic, which lights up via LED when the weapon is deployed. The figures themselves also feature translucent plastic, so the moving LED creates the image of energon power "flowing" from the character's bodies into their weapons. This worked better in theory than in practice. Internally, these figures were referred to by Hasbro as "Powerizers".

In the "Transformers" film, the robots had more of an alien feel to them to fit the theme of an alien invasion. The robots (stated by Optimus Prime) in the film are actual sentient organisms and not just giant, mindless, and mechanical machines. The robots can also speak their own alien language sounding like what seems to be based on different pitches and frequencies. Alongside that, they gave them more alien features that probably wasn't mentioned in the comics or T.V. series such as a highly advanced exoskeleton, force field, and a special "alien meteoroid" mode which they transform into individually and arrive on earth in. The exoskeleton is a "self-regenerating metal" in which the aliens are composed of (stated in the film) that is the equivalent of living skin that heals itself.
In just seven years, from 1997 to 2004, the number of elements in the company’s inventory exploded, ascending from slightly more than 6,000 to more than 14,200. So did its range of colors, which climbed from the original six (red, yellow, blue, green, black, and white) to more than fifty. As the number of components and colors mounted, soaring supply and production costs plundered the company’s bottom line. Here’s why.

The instructions neglect to mention that the entire roof of the cab is on a concealed hinge which greatly eases the difficulty of Prime's transformation. For whatever reason, the instructions treat the toy as if the hinge does not exist, going so far as to show Prime's head magically clipping through his chest to transform. The instructions also neglect to mention that his heel/bumper pieces must be slid out until they click, making the figure just that bit more stable, and that the rotating truck door panels on his upper arms can be pulled further out (but not off) from their sockets, allowing more space for the panels to swing around his hood-arms during transformation.

His main gimmicks, however, are the two large, blue-and-white mini-guns hidden in his back/hood, which can deploy and "weaponize" either mode. When deployed, the mini-guns swing out from his back/hood and spin, while a red LED inside his torso lights up briefly. The mini-guns swing down to the sides of his head in robot mode, and can also be deployed in vehicle mode when one manually opens the grille. Pushing down on the red lever on the center his torso (in either mode) briefly lights up the LED again and swings the mini-guns back into their hiding places.
For all the positive aspects, these changes are not without their drawbacks. The LEGO community has been crying foul over the perceived decline in quality of the bricks5. While nowhere as bad as their competitor, any decline in quality reflects poorly on a company known for quality control. The LEGO group has been expanding its manufacturing base to places outside of Denmark, into Mexico, the Czech Republic, and China (although so far it seems only their “signature brand” non-set items are made in China). LEGO claims that this has not changed their dedication to the quality of standards by which they abide. However, it seems that the molds have changed to reduce plastic6.  Whether or not this affects the durability of the bricks is yet to be seen.
The SS-03 version of Takara's Deluxe-class Optimus figure, based on the Anniversary release, was released in Hasbro markets in a two pack with the smaller Japanese Megatron figure. There are some tiny but notable differences between this and the Anniversary figure; the Hasbro version uses a more neutral dark-gray for the main body as opposed to the Takara version's blue-tinted dark-gray, plain dark-blue plastic rather than dark-blue-with-sparkles, and plain yellow paint for the cab's lights rather than sparkly-yellow/gold.
Stewing in a cell, Optimus blamed himself for their predicament, but he and the Autobots were soon rescued by Broadside and Sandstorm. Sandstorm and Optimus traveled through Cybertron's Old Slave Trails, only to find themselves ambushed by Runabout, who swiftly killed Sandstorm, and then the Decepticon was attacked by a Sharkticon, which lunged at Prime. Cold War Prime recovered to find himself in the care of a group of Autobot rebels including Hot Rod, Blurr and Kup. Though Optimus lashed out at Gnaw upon awakening, the other rebels quickly cleared up the misunderstanding, assuring Prime that the Sharkticon was their ally. They revealed to Optimus that Shockwave had been transmitting subliminal signals to increase Transformer aggression, readying them for war against an unseen foe. At this point, another rebel cell joined up with them with dire news: Shockwave had unleashed the Omega Sentinels on Iacon! Passive Aggression
Oh, also, I should add that I would like to see if this trend is the same for specific themes, or just over all themes. Although I would guess that the individual themes would show the same general trend you discuss here, one reason individuals might believe in the “price increase fallacy” might be because of the individual themes they support. But again, I think that if you do this, you will find the themes fit the trend as well. If you are looking to go into the numbers more, this might be an interesting area to investigate.
Available exclusively from Japanese clothing company A Bathing Ape in 2015, MP Convoy Reissue BAPE Ver. is a trailer-less redeco of the MP-10 mold sporting a unique deep red color scheme matching the Convoy Reissue BAPE Ver. RED of the original G1 toy, with "BAPE's famous camouflage pattern" and an ape head print on the shoulder replacing the usual faction symbol.
Surprisingly, this was also the first Hasbro exclusive transforming Movie Optimus Prime figure to be based on the final design seen in Age of Extinction. He even features the forearms that Prime had before obtaining the Sword of Judgement, which unfortunately means that he is inaccurate to his appearance in the battle of Hong Kong and the entirety of The Last Knight. The sword's blade is still painted as the heated-up version from the concept art.
In 2016, the figure saw re-release with the Combiner Force packaging. Being the tenth use of the sculpt at this point, some instances of mold deterioration have affected the figure, including: the vehicle front's bumper (which affects the space on the head/front bumper transformation), the headlights, and/or the legs, and the hole on the left shoulder is also prone to develop a stress mark due to the right shoulder's slightly "thickened" peg. Although the re-released badge didn't seem to unlock Optimus Prime after it was scanned, a later update to the game amended this.
Optimus found himself carrying into battle many miniature robots and machines to the battlefield in the palm of his hand. Among these was a Micromaster city, Micromaster micro bases commercial, the Race Car Patrol, Micromaster Patrols commercial and the Hot Rod Patrol. He and Jazz checked out the Hot Rod Patrol, and Optimus wondered if they could transform. Hot Rod and Construction Patrol commercial
The set also includes a redeco of Generations War for Cybertron Optimus Prime figure, which changes the original figure's dark red plastic to a brighter, more vibrant red, changes the gray plastic to a darker charcoal tone, changes the "windows" from gray to nearly black, and replaces most of the original figure's pink-ish red paint details (which were yellow on the redeco from the "Rage over Cybertron" three-pack) to teal.

Optimus Prime appears in the Transformers live-action film series as the leader of the Autobots and one of the main protagonists. In the first three films, he is able to transform into a conventional Peterbilt 379 cab, rather than the cab over design of his original Generation 1 body. In Transformers: Dark of the Moon, he gains a first generation-style trailer form before changing into a 2014 Western Star 5700 Concept.[29] Also straying from the G1 design, Prime's vehicle mode is now decorated with red flames painted onto a blue body à la Rodimus Prime, his Generation 1 successor. The reason for the change was due to Director Michael Bay's decree that mass displacement does not occur when they transform, requiring Optimus's vehicle form to have more mass to achieve the desired size in his robot form.
This Japanese e-Hobby exclusive is a redeco of Targetmaster Kup, made to represent the character Orion Pax from the cartoon episode War Dawn. He transforms into a Cybertronic pickup-truck thing. His truck bed has a peg-hole to mount his partner Barrelroller, who also serves as a hand-held weapon. The set also came with a re-deco of Wheelie as Dion.

The 2010 Transformers "Reveal the Shield" Legends Class Optimus Prime sculpt in the deco from the first Chronicle EZ Collection wave (see below) was released as a "Dollar Store" exclusive (available at stores such as Dollar General and Big Lots) in generic 2010 Transformers packaging packaging alongside Starscream, Bumblebee and Megatron. The initial release saw the copyright year removed, while a later running change variant featured the new tooling originally used for Generations Legends Class Motorbreath, with not only the retooled hands and a hole on the back of his head/top of his vehicle mode compatible with 3mm posts, but also Motorbreath's sword accessory.
Part of the first wave of Generations: Combiner Wars Voyager Class toys, this is a bigger, bulkier incarnation of Optimus Prime with a striking resemblance to Ginrai. He comes with two blasters which he holds via 5mm post. One of the guns is based on his trademark Ion Blaster, and both weapons store on the back of his vehicle mode as a makeshift engine block. His torso mode has several details that appear to be influenced by Energon Optimus Prime's super mode, including the head, chest, and thighs. In particular, the chest details are modeled after the Spark of Combination. He also features two pair of fake windows on his robot and gestalt chest halves. The combiner head can be used as a robot mode head if you're feeling silly.
Cosmos warned Optimus about a fuel plant the Decepticons were building, so Optimus took the Dinobots in his trailer and, under the guise of having a delivery for Shockwave, invaded the construction site and defeated the Decepticons. After this victory, Optimus turned his gaze skywards, and thanked Cosmos for his contribution to the Autobot cause. The Autobot Spy in the Sky
This figure was made available again, without any changes, in 2015, this time in new packaging resembling the then-concurrent packaging design for the Generations line, but replacing the name "Generations" with "Authentic Transformers". It was also given a new Hasbro product code number and UPC barcode, thereby technically making it a separate product. In 2017, it was re-released again, this time in a minor variant of the 2014 version's packaging (including the original product code number and barcode) that now lacked the reference to the non-existing "Reveal the Shield" gimmick.
A Walmart exclusive set featuring a redeco of the first Cyberverse Commander Optimus Prime figure, featuring moderately brighter colors and paint, while his jetpack and rifles are now black, with the jetpack's wings having silver flames. He also lacks the flame pattern on top of his hood, and features different flame patterns on the sides of the hood.
Optimus Prime led the Autobots to stop Megatron's attempt to cyberform Earth. After discovering that Megatron's new weapon was the Proudstar, Optimus initially tried to preserve the Cybertronian history contained on its Ferrotaxis supercomputer. Inside the Proudstar, he received a prophecy of his future death from Teletraan Alpha, but he merely expressed happiness that his friends would survive. After the Plasma Core was damaged and proved to be too great a threat to Earth, Optimus reluctantly decided to destroy it and the Ferrotaxis in order to preserve humanity's right to forge their own future. When Megatron shot shot the Ferrotaxis into space in one last spiteful effort to stop the Autobots, Prime rode an Insecticon swarm into Earth's orbit for a final showdown with Megatron, ultimately forced to destroy the Ferrotaxis. Once Megatron was again defeated, Optimus called upon the Autobots to stop merely living upon Earth and adopt the planet as their new home. Later, he and Wheeljack discussed plans for the Optimus Maximus project. Transformers: Devastation

This figure contains an unusual amount of sculpted detail on the inside of the plastic. The gorilla mode's chest has a ribcage, and the inside of the gorilla's face has a sculpted microphone, which lines up perfectly with the robot mode's head! Also, opening this toy's chest in robot mode reveals sculpted detail resembling the Key to Vector Sigma as it appeared in Beast Machines.


At some point, Rodimus learned that the world known simply as Planet Q was under threat from the world-devourer, Unicron, but arrived too late to prevent its destruction. Years later, however, he encountered the planet's surviving ruler, Alpha Q, and sided with him in his plan to use Energon to regenerate and restore all the worlds consumed by Unicron – a plan that put him in opposition with Optimus Prime when they encountered each other once again. When Megatron succeeded in reactivating Unicron, however, Rodimus relented and submitted himself and his troops to Optimus Prime's command, and they were integrated into the main Autobot force as the battles continued to defend Alpha Q's successfully-regenerated worlds against the Decepticons.
Optimus Prime is then informed that Megatron has infected the core of Cybertron with dark energon and is given the task to undo the damage done. After rescuing Omega Supreme, Optimus, Ironhide, and Prowl fight their way to the core, but it's too late. The core informs Optimus that it is far too corrupted. It can repair itself by shuting down, but it will take millions of years. By that time, Cybertron will have to become cold, barren, and uninhabitable. The core gives Optimus a small piece of itself, saying it will still survive as long as the piece does. Optimus accepts the burden and the core relinquishes the Autobot Matrix of Leadership.

The original 1984 Optimus Prime toy was part of Takara's 1983 Diaclone toy line named "Battle Convoy". It was designed by the creative design team of Hiroyuki Obara, Shoji Kawamori, famous for his work in Macross, and Kohjin Ohno.[19] The toy's characteristics, such as the head design and the use of the cab front as the upper torso, have become design elements in nearly every incarnation and variant of Optimus Prime. This particular toy has been reissued multiple times, mostly to commemorate the anniversary of the transformers franchise. Optimus Prime was also released as an Action Master and Powermaster toy in the original transformers toy line.
There is some difference of opinion on how the super mode of Leader Class Optimus Prime is supposed to assembled. Takara toys and the television series portrayed with the wings up and his two large guns underslung, however Hasbro later sold the toy with pictures and instructions having the wings down and the guns over the shoulders. Commercials and repainted models by Hasbro went back to the way Takara assembled the super mode. In 2006 a Costco exclusive of Optimus Prime packaged with Wingsaber and a DVD (with Armada Supercon Optimus Prime printed on it!) of the episode United was sold, again with the wings-under gun-over super mode. In Japan a gold chrome edition of this toy was released as a Lucky Draw special.
This figure was only available in a two-pack with a Voyager Class Grimlock figure. The two-pack was exclusively available at Target stores in the United States, Canada and Australia, at Tesco stores in the United Kingdom and Hungary and at Galeria Kaufhof department stores in Germany. In Asia, most of the remaining stock are available in some hobby shops and some video stores like Speedy Video.
Optimus appears again in the 2011 film Transformers: Dark of the Moon. Optimus receives his own armory consisting of weapons and flight tech that transforms into a trailer for him to carry in vehicular form. After assisting NEST operatives in fighting Shockwave at Chernobyl, Optimus learns that the humans have concealed the discovery of a Cybertronian ship on the moon. He and Ratchet go to investigate the Ark, where they recover Sentinel Prime, Optimus's predecessor and mentor. Optimus returns him to life using the Matrix of Leadership back on Earth, explaining how they lost the war and Cybertron has become a barren wasteland. Later Optimus shows Sentinel the natural beauty of Earth, and takes the opportunity to offer him the Matrix, but was allowed to keep it. Sentinel later betrayed the Autobots, having formed an alliance with the Decepticons because he wants to restore life to Cybertron. Optimus attempted to reason with Sentinel, but failed as several Decepticons came through a space bridge. After Sentinel Prime insisted that the humans expel the Autobots from Earth, the Wreckers prepare the Autobot ship Xantium for flight. Sam attempts to find out what their counter-attack plan is, but Optimus states they have none, and that Earth's fight is their own. During the departure, the Autobots escape in the first booster stage and return to Earth before Starscream destroys the ship. Arriving in Chicago, Optimus shoots down a Decepticon fighter as he tells Sam and Epps that he never expected the Decepticons to keep their word and that they are going to fight back. Optimus loses his trailer when Shockwave and his Driller arrive. He manages to retrieve it later and uses it as a flight pack, decaptitating the Driller's main head. During the battle, Optimus got caught in exposed wires and the Wreckers helped free him. Flying down onto the main battlefield, he abandoned his flight pack and used the momentum to attack and kill many Decepticons before he finally killed Shockwave. After using Shockwave's cannon to disable the control pillar for the space bridge, Optimus fights Sentinel Prime. Optimus Prime's right arm is cut off and Sentinel is about to end Optimus's life when Megatron intervenes and attacks Sentinel. After defeating Sentinel Prime, Megatron proposes a truce, but, instead, Optimus slices his head off, killing the Decepticon leader. Optimus Prime then grabs Megatron's shotgun and prepares to execute Sentinel, who pleads for his life, saying that he betrayed Optimus just because he wanted to save their race. Optimus executes him anyway, replying that Sentinel betrayed himself. With the Decepticons defeated and the war finally over, Optimus and the Autobots accept Earth as their true home.
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.
In "Sick Mind", Optimus is infected with the life-threatening Cybonic plague, prompting Arcee and Bumblebee to infiltrate the Nemesis to find a cure for the virus Megatron himself created. As Optimus grows weaker, he learns of Megatron's survival of the space bridge explosion. It was Bumblebee entering Megatron's mind via cortical psychic patch and retrieving the cure that saved Optimus. In the next episode, "Out of His Head", Optimus is, surprisingly, saved by the revived Megatron when he intercepted Starscream's attempted nosedive to kill him.
Prime soon had other things to worry about, as Magnus arrived on Earth with the intention of taking the Matrix, which he believed was rightfully his, at all costs. Prime, who refused to fight back, was seriously injured by Magnus. Magnus tracked Optimus to a desert island, where he pretended to offer him the hand of friendship, only to attempt to absorb the Matrix for himself. During the struggle, the brothers combined into the form of Omega Prime, also known as the God Fire Convoy. Through this link, Magnus was also able to channel the power of the Matrix, which he used to supercharge the Autobot Brothers into newly colored forms. Prime went on to battle the Decepticons on many other occasions. Although Magnus remained a free agent, refusing to take orders from his brother, over time, his animosity dwindled, and he frequently helped the Autobots by combining with Prime to battle the Predacons and Decepticons. During the final battle with Megatron's new form, Galvatron, the two brothers finally reconciled. Together, they faced Galvatron at the Earth's core and defeated him once and for all.
Optimus Prime led a group of Autobots who left Cybertron aboard the Ark, which was shot down over Earth, sending them into stasis for four million years. Optimus was badly damaged in the crash, and the prognosis wasn't great, but he recovered in time to announce the Autobots had no choice but to involve the humans in their war. Following a battle at Dyson Dam, Prime persuaded Jetfire to join the Autobot team. When the Decepticons headed through the space bridge to Cybertron, Optimus followed, only for him and his team to be ambushed and imprisoned.
Part of the first wave of TakaraTomy Lost Age: Movie Advanced toys, this Japanese-exclusive redeco of 2007 Transformers Protoform Optimus Prime is given a Generation 1-styled color scheme (which is also based on his appearances in IDW's Transformers: Foundation comic-book mini-series). Protoform Optimus Prime transforms into his "entry" mode. This mode somewhat resembles a cybertronic truck, with false wheels sculpted onto the sides, and Optimus Prime's trademark windows in front. His now-blue flame decoration piece fits to the back of the "vehicle", creating the illusion of a flaming comet's tail (Not sure if this was mean to represent his jetpack blast effect or his atmospheric entry heat effect, which is for no reason: entirely blue instead of hot red). The bottom of the vehicle has small wheels to roll the toy across smooth surfaces.
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