In the animated series, Optimus is able to fire short-range optic blasts, project holographic maps, and deploy hydro-foils, designed by Wheeljack, to traverse bodies of water with ease. In the animated series, Optimus was also given the ability to retract his right hand unit and replace it with a glowing axe.[7] Across the assorted continuities of the original Transformers universe, there have been various interpretations of Optimus Prime. One of Prime's most notable characteristics over all continuities his unswaying commitment to leadership by example. The animated series's version of Optimus Prime is depicted as a straightforward, wise, and upbeat battlefield general. Additionally, the animated series's version of Optimus dislikes rap music, putting him at odds with music-loving characters like Blaster and Jazz. In the Marvel Comics series, in addition to these characteristics, Prime is secretly plagued by self-doubt and a conflicted sense of pacifism that often makes him an extremely reluctant warrior.

After a period of effective leadership, which saw the activation of several new Transformers including the Aerialbots, who Prime infused with life using the Matrix, Prime engaged Megatron in a video game duel for possession of a super fuel. Prime was victorious, but Megatron implemented a cheat code that killed Prime later. Autobot surgeon Ratchet's subsequent efforts to restore him were unsuccessful, and his body was launched into space. The Autobots were unaware of the presence of the physical Matrix within the corpse. The funeral barge eventually crashed on a giant moon and, as it lay there for an untold time, the Matrix reached out to nearby living organisms, studying and recreating them.
Compared to the Combiner Wars release of the mold, Convoy features additional paint operations on the thighs, truck bumpers, the details on the inner legs, the gestalt chest halves (which are now painted over due to being molded in grey plastic), and the gestalt torso's lower section. The stomach's deco is also minimized, and the silver paint operations on the lower legs are now replaced with gunmetal while the mute metallic blue is now shiny metallic. When it comes to unpaintable plastic; his leg joints and feet are now blue, while the gestalt skirt flap is now the same grey as the arms. In addition, his flip-up gestalt leg panels and thighs are now molded in black, with the latter being painted in silver with some yellow details.
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.
Armor Knight Optimus Prime is a retool of Age of Extinction: Generations Leader Class Optimus Prime. It features a new head sculpt with a rotatable faceplate (one side with the mask, the other without, the whole part rotates), along with other remolded body parts (such as his skirt, feet, and chest), giving it a more screen accurate appearance. He includes more movie-accurate weapons, featuring a new sword and shield, albeit in not-so-accurate colors (the sword's transparent orange blade was also a nod to the sword's "heat up" mode in the concept art.). He is covered in metallic paint, along with additional chrome details on his rims and bumper.
Inspired by the 1985 promotional version of Optimus Prime that featured Pepsi stickers on his trailer, this outlandish incarnation of Prime is a slightly altered version of Takara's 2005 Pepsi Convoy figure (which represented a different character to Prime). The figure was only sold by Hasbro Toy Shop at various conventions, and given away as a promotional prize by Pepsi, via their Mountain Dew brand.

The first toy in TakaraTomy's United toyline is a redeco of the War for Cybertron Deluxe Class Optimus Prime, transforming into a Cybertronic "armored truck". As has been TakaraTomy's wont of late, he now sports a metallic red paint job, with brighter pink paint applications and cooler grey parts, and features several additional paint details to those present on the Hasbro figure in the form of black chest windows and pink lines on his face mask. His rifle transforms as well, folding and plugging into the roof of the vehicle mode. The rifle can also peg into his forearms, and, in its compact configuration, can attach to his shoulders via peg holes on the backs of his front tires or stored behind his back in robot mode.

Available only via mail-order through Dengeki Hobby magazine, this black and gray redeco of Optimus is one of four "Black Body" promotional Robot Masters toys made available through different outlets simultaneously. He came with his normal accessories (it is worth noting his axe was solid silver), plus a chromed-gold clear-red-plastic version of Psycho-Orb's "Calamity Defenser" solitarium shield.
Optimus and Wheeljack returned to Autobot HQ after an absence to find Grimlock had taken leadership. Though they failed to resist him, he soon bored with leading the Autobots and let Optimus take command again. Me, Grimlock, King Impressed with Bumblebee's success as team leader, Optimus assigned Pipes to lead a team. The B-Team Part Deux With Optimus badly damaged and without the Matrix, the Autobots were driven off Earth and sought refuge on Cybertron. Once Optimus had recovered, he put together a team which returned to Earth and retook it from the Decepticons, with Optimus badly damaging Megatron in combat. All Hail Megatron
Released as part of the Allspark Power refresh of the movie line, First Strike Optimus Prime is a extensive redeco of Voyager class Optimus Prime in a colour scheme based upon Generation One and Classics Optimus Prime. The included toy bio describes this coloring as Prime paying tribute to the markings he wore as a young soldier when the war began. Due to the transformation scheme, this figure actually ends up being less like its G1 counterpart in robot mode, a sacrifice made for the slavish redeco of the vehicle mode. You can't have your cake and eat it too, folks.
This version of Optimus Prime is an all new mold, being the most movie accurate so far — or at least he was until Buster Prime came out. It comes with his two energon blades, and does not have a large gap at the back of the cab like the previous Leader-class Optimus Prime. It can combine with Leader class Jetfire to form Jetpower Optimus Prime. He is also very hard to transform. The process involves unclipping his firewall from his chest in a fashion that harkens to dissecting toys that lack screws, rivets or glue. In the meantime, he keeps saying, "I am Optimus Prime," over and over due to an overly sensitive voice clip trigger. Even the most die-hard Peter Cullen fan will be sick of his voice after five minutes of playing with this toy. That aside, the quality and articulation is top-notch and the poseability is amazing. Spring-loaded panels feature in his legs as well as ratcheting ball-and-socket ankles, G1 "transforming" sound effects, and multiple "Mech Alive" features raise the bar on this figure. Of note, the fists cannot accomodate standard accessories, and on test-shots of "Power Up" mode Prime has articulated fingers, like the 2007 toy, but this feature was dropped. Also, trying to transform Optimus from robot to vehicle mode can be very difficult at first.
Universe Optimus Prime is a redeco of the Robots in Disguise Scourge Spy Changer toy. He replaces most of the black plastic with predominantly red and blue, with silver for detailing, with an overall deco making him resemble the original Optimus Prime. Like most Spychangers, he features high speed axles and can roll very well across smooth surfaces, but lacks the weight to propel him quickly.
This agenda led the Predacon Megatron to attack the comatose Optimus Prime in stasis on prehistoric Earth, forcing Primal to take Prime's Spark into his body in order to preserve his life while his body underwent repairs. Primal was subsequently mutated into the massive "Optimal Optimus" form, which shared elements of Prime's form, prior to returning the Spark to its rightful place. The Maximals were occupied throughout the remainder of the series protecting Prime and the other Transformers aboard the crashed Ark until the Predacons were defeated. Various monuments to Optimus Prime appeared on Cybertron in Beast Machines, one of them a holographic statue in Iacon that Megatron took control of in order to trick Primal.
After the rise of the Decepticons and the death of the merciless Zeta Prime, he became the Prime, and entered what would become a millions-of-years-long war of attrition with the Decepticons, which would lead to the death of Cybertron and the spreading of the Cybertronian civil war far beyond their homeworld in a push for resources. With the end of the war and the emptying of the Matrix of Leadership to restart Vector Sigma and rebirth Cybertron, he found himself rejected by the returning civilian population, and - secretly gladly - abdicated his rank and returned to his original name of Orion Pax as he travelled through the galaxy.
Part of the first wave of Age of Extinction: Generations Leader Class toys, this is yet another completely new "big" Optimus Prime figure. While smaller than the First Edition toy, this one features more silver and chrome paint in vehicle mode, a more poseable robot mode, and a Vector Shield accessory instead of the Sentinel Shield. Unlike the First Edition figure, Leader Class Optimus Prime's pauldrons and hip-skirts are formed from truck kibble, giving him a marginally smaller backpack. His accessories have roughly the same functionality as the First Edition toy, with his sword being hand-held and pegged onto his hands or storing underneath the truck, and his shield mounting onto his left forearm or storing on the back of the truck. Additionally, the sword sheath underneath the truck can be folded up and used in robot mode.
Alternatively, if Optimus chose to retreat either when initially confronted with the overwhelming Decepticon threat, or after realizing that his troops are too weak to fight after ordering them to concentrate their firepower equally amongst the intruding Decepticons, the ensuing underground adventure can have multiple outcomes; the Autobots become the captive of the Insecticons, forcing Optimus to either entrust Beachcomber with the fate of his troops, or to bargain with the Insecticons for the safe release of his Autobots; or dealing with the theft of the Sun-Pak by either duelling Megatron for the device's ownership, stealing the Sun-Pak back from the Decepticons or charging Mirage and Buster with the device's retrieval. If Optimus duels Megatron for the device, he either wins through brute force or by being more "cunning" than Megatron and destroying the device before the Decepticons can claim it as their victory prize. If Optimus attempts to steal the Sun-Pak under the Decepticons' noses, Optimus is shot by Megatron when the Decepticon leader notices Optimus and Smokescreen skulking towards the Sun-Pak. The Autobots nonetheless retrieve it when Smokescreen blots out the sun with his emission fumes, forcing Megatron to pass the Sun-Pak towards Buzzsaw in order to bypass the Autobots' smog cover, only for Optimus to intercept Megatron's pass and drive away with the Sun-Pak in Autobot possession. Finally, if Optimus has entrusted the Sun-Pak's retrieval to Mirage and Buster, the Autobot leader makes the duo swear not to engage the enemy for fear of their safety. If his Autobots keep their promise to him, Optimus is called in alongside the rest of the Autobots when the Insecticons are discovered, and Optimus leads a successful ambush towards the Insecticons, at the cost of the Sun-Pak itself. Attack of the Insecticons

Transformers: Energon introduced several new concepts to the toy line. Two new sub-groups, the Omnicons and Terrorcons, joined the fray, representing smaller factions of the Autobots and Decepticons respectively. The smaller toys in these sub-groups came with Energon weapons that could be used by the larger Autobots and Decepticons, along with Energon chips that could be fastened to the larger figures to enhance their power. Energon weapons and chips came in a variety of colors of translucent plastic. Many Autobot figures in the line were able to combine with a partner to form a larger robot through the "Powerlinx" process. The Decepticons were designed instead with alternative "attack modes". While no longer the focus of the line, there were several Mini-Con releases in Energon as well.
After the Combiner Wars, Optimus watched the reconstruction efforts. Not wanting to overstay his welcome and preferring to leave Cybertron's leadership in its existing hands, he bid farewell to the Mistress of Flame and Windblade and departed for parts unknown. Aftermath and Rebirth On the way, he received a vision of future events from the Matrix and headed back towards Metroplex City. There, he met up with Megatron and told him of his vision, believing that the Combiner Wars and Trypticon's attack were signs of a greater threat, one that would lead to their ultimate destruction. Megatron laughed off his concerns, and the two parted ways. The Fight Begins
A heavy retool of Combiner Wars Ultra Magnus, this Optimus Prime is based on the Powermaster Optimus Prime toy from 1988. Despite this, Hi-Q (now renamed 'Autobot Apex', presumably for trademark reasons) doesn't form the engine on Prime's chest; instead, he transforms into a de-faceplated version of the original Powermaster Optimus Prime cab robot head, over which a helmet slides during transformation to complete the Powermaster Prime look. In all three of Optimus Prime's modes are various pegs and seats with which Titan Master figures can interact. Like other Leader Class figures, his base mode can connect to other Titan Returns figures with base modes.

Yet another Reveal the Shield redeco with the Motorbreath retooling, Convoy is cast in clear red and black plastic. He has been retooled to include a magnet in his right foot, allowing him to interact with Lost Age Battle Command Optimus Prime and Age of Extinction Stomp & Chomp Grimlock. Convoy was available at a variety of 2014 events, including on May 3 at a "Kids Walk" event at Fuji Speedway, in special packaging on May 16 at the "Transformers Celebration 2014" midnight event at the Sunshine City Toys"R"Us store in Ikebukuro, on June 15 at Tokyo Toy Show 2014, at the Aeon Mall in Kasukabe on July 19, and at the "Transformers Expo" event in Yokohama on August 9. Convoy was also available as one of three preorder bonuses for Cloud Roadbuster.
Across the assorted continuities of the original Transformers universe, there have been various interpretations of Optimus Prime. One of Prime's most notable characteristics over all continuities his unswaying commitment to leadership by example. The animated series' version of Optimus Prime is depicted as a straightforward, wise, and upbeat battlefield general. Additionally, the animated series' version of Optimus dislikes rap music, putting him at odds with music-loving characters like Blaster and Jazz.
Optimus made his way to the Primal Basilica, where he found Perceptor standing over the Mistress of Flame's battered corpse. Unable to do anything for her, Prime activated the Basilica's defenses as a means of stalling Trypticon. Learning from Perceptor that Rodimus had given up the Matrix, the two entered the chamber of the Chorus of the Primes to have the Matrix returned to him. Desperate Actions However, Optimus revealed the Matrix was not for him, but rather for Perceptor, as he wanted to make sure it would be taken as far away from Trypticon's grasp as possible. He guided Perceptor to a secret exit from the Basilica and sent the scientist on his way. Run for Our Lives Warned by the Chorus to "beware the power of the Primes", Optimus charged back towards the battlefield and began attacking Trypticon, rescuing Victorion. Optimus led the Combiners in battle against Trypticon, but the Titan managed to hit him, sending him hurtling towards some sharp rubble. Thankfully, he was caught at the last moment by Fortress Maximus. In Good Hands
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