Optimus was checking up on the Autobots' ongoing energy collecting campaign when Wheeljack informed him that a disturbance in Sector 33HM of space-time would eventually cause major problems in its time-stream. Optimus assigned the investigation of this disturbance to Bumblebee, then noted that Hot Rodimus had not completed his latest report, communications with the young Autobo having been lost while he was on his own mission. With a brief inspirational speech, he urged his subordinates to redouble their efforts in maintaining harmony throughout reality. Little did Optimus suspect that in his own universe, Megatron was planning a coup against the Autobots... Uprising
Knight Armor Turbo Changer Optimus Prime is a Voyager-sized figure that transforms from truck to robot in just 2-steps: pulling his whole truck kibble to the front then fold down to complete the robot mode, although converting him back requires some few steps. His only articulation is the elbows, and he features 5mm compatible hands. He also features a "Knight Armor" gimmick, which consists of his mask popping out to his head with the press of the button on his chest. Take note that you need to flip back the mask manually before you turn him back into Truck Mode.
The lowest priced toys in the Armada line were three-packs of Mini-Cons. Each larger price point consisted of an Autobot or Decepticon who came with a Mini-Con partner. Mini-Cons could be used to unlock a variety of features on each larger robot, such as firing weapons, electronic lights and sounds, or alternate modes. Some three-pack Mini-Cons combined into other forms or had additional features. According to the storyline, Mini-Cons also enhanced the power of other Transformers, giving incentive to collect as many of them as possible.
In his first appearance in the series, Optimus looks similar to the original G1 Optimus Prime until he copies himself with a semi-truck and his design in robot mode changes. Soon after, he retrieves his Mini-Con partner, Sparkplug Witwicky. The cab of his truck mode detaches to form Optimus himself, while the trailer transforms into a battle station mode operable by Optimus and several Mini-Cons. Optimus can also combine with his base to form a "Super Mode" robot that, when combined with Sparkplug, can fire a series of powerful lasers. Additionally, Optimus can combine with Jetfire and/or Overload in his Super Mode for additional power.[10]
The second known version [17] ditched the triplechanging gimmick on the cab and simplified things a good bit. This Powermaster Prime has several distinct characteristics only seen in the second design, such as the wider "block head" and two faux smokestacks on top of either shoulder as opposed to one. Also, in a rather odd twist, this design features a black head and fists for both super and regular modes rather than the traditional blue. It also had yellow eyes in either mode a la the original Optimus Prime.

Then he dreamed of awakening, only to find his troops smashed. Realizing his only hope for survival lay with Cybertron, Optimus then boarded the ship the Autobots were repairing, and travelled back to his home planet. Arriving on Cybertron, he found it completely under Decepticon domination. Optimus then met an old Autobot codger who pleaded that he return to Earth to gather a force that could overthrow the Decepticon’s regime. Optimus remorsefully told the old Autobot that there could be no reinforcements from the planet Earth. The two Autobots were then swarmed by Decepticon police officers, who Optimus fought until his dying breath…
Came with the Mini-Con Sparkplug. Could combine with Armada Jetfire (and its repaints) and/or Armada Overload (and its repaints). The trailer could convert into a base for Mini-Cons. In Japan a gold chrome edition of this toy was released as a Lucky Draw special. With its trailer the vehicle mode of this toy bears a great resemblance to G1 Star Convoy. According to the Armada video game Armada Optimus Prime is supposed to be 22 feet 10 inches tall (696 cm tall) and the toy is 17.5 cm tall. So that's a scale of 1:40.[55]
Bumblebee had many adventures in his bizarre humanoid form. He wound up in the heart of Cybertron to find the resting place of the creator/god of all Transformers, Primus, and learn of their origin as a race. Later, he went on a quest to find the all-powerful Creation Matrix, also known as the Autobot Matrix of Leadership, but stumbled upon the Cybertronian Decepticon commander, Thunderwing, who blasted away Bumblebee’s Pretender shell.
In the Japanese exclusive Transformers: The Headmasters storyline (which replaced the "Rebirth" finale in Japanese continuity), Hot Rod appeared as part of Optimus Prime's inner circle. When Galvatron and his Headmaster warriors launched a devastating attack on Cybertron, Vector Sigma was damaged, and Hot Rod was sent to Earth to retrieve the Matrix. Recovering it, he returned it to Prime, only to be surprised when the ghost of Alpha Trion once again reformatted him into Rodimus Prime to help Optimus. After Prime's second death, Rodimus once again took command of the Autobots. However, when Scorponok destroyed Vector Sigma, Rodimus decided to leave the war, and left Fortress Maximus in command of the Autobots.

Outstanding work here. After reading a number of complaints about how the price has ‘increased’ over the years, it’s great to see this analytical approach. One additional hypothesis I have is related to the increase in the number of sets released each year, which would appear to be supported by your data. More sets to buy to be ‘complete’ makes for more money out of pocket.
Optimus Prime is the awe-inspiring leader of the Autobot forces. Selfless and endlessly courageous, he is the complete opposite of his mortal enemy Megatron. Originally a mere civilian known as Orion Pax or Optronix, he was chosen by the Matrix of Leadership to command, the first in a number of heavy burdens he has been forced to bear. Another is his bringing of the Transformers' conflict to Earth. Every casualty, human or Cybertronian weighs heavily on his spark. He does not show this side to his soldiers and never succumbs to despair. The Autobots need a decisive, charismatic leader and that is what he gives them. It was that leadership which turned the tide of the Great War.
The U.S. release of Super Fire Convoy had the Japanese voice replaced with an English voice (with the lines, "Optimus Prime, Maximize!" and "Autobots, Transform"), and Autobot insignias were added on the side panels. Much like the Japanese version, Optimus Prime's normal robot mode can combine with Ultra Magnus (sold separately) to form Omega Prime.[48]
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.

Marissa and Prime are now on the run from the EDC and are also frequently attacked by the mysterious "Legion" Transformers. When faced with such foes, Marissa unleashes her "Kiss Player" ability by kissing Prime, fusing with him once again, increasing his power so that he can best their opponents. Prime is armed with the Surf Blade, a weapon formed out of Marissa's surfboard, wielded expertly thanks to the knife skills Marissa passes on to him when they merge.[18]
Inspired by a 1985 special limited release of Optimus Prime with bonus Pepsi decals for his trailer in the US market, Pepsi Optimus Prime sports an egregious number of new new Pepsi-themed paint masks and decals, as well as an entirely new trailer unit, specially designed to carry a single 500ml-size bottle (a common size in Japan), three 350ml cans, or 12 bottle caps (bottle cap figurines being a common and popular collectible item in Japan).
When Ultra Magnus, Rodimus, Arcee, and Spike took cover within the Autobot Mausoleum, retreating from an attack led by Galvatron, they found Optimus having risen from the dead! Rodimus returned the Matrix of Leadership to Optimus, only for Optimus to abandon his Autobots, and flee back to Cybertron. Optimus, it seems, has returned to the world of the living changed. Once on Cybertron, Optimus orders a full-scale assault on the Quintesson base. Thankfully, Optimus managed to come to his senses when his memories of being revived by the Quintessons reemerged. After returning the Matrix to Hot Rod and ordering the Autobots to retreat, sacrificed himself once more by guiding the ship he's piloting into the Quintesson's trap. Dark Awakening
 • Optimus Prime  • Rodimus  • Ultra Magnus  • Alpha Trion  • Arcee  • Blaster  • Blurr  • Brawn/X-Brawn  • Bulkhead  • Bumblebee/Goldbug  • Cliffjumper  • Elita One  • Hoist  • Hot Shot  • Hound  • Ironhide  • Jazz  • Jetfire  • Kup  • Metroplex  • Mirage  • Omega Supreme  • Perceptor  • Powerglide  • Primus  • Prowl  • Ratchet  • Red Alert  • Sandstorm  • Smokescreen  • Seaspray  • Sentinel Prime  • Sideswipe  • Springer  • Wheeljack  • Wheelie  • Wreck-Gar
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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