In the wake of this incident, the transformers managed to reclaim much of Cybertron. Mindful of the dangers of allowing humans like Cobra access Cybertronian technology, Prime sent Perceptor, Grimlock, Arcee, and Bumblebee on a mission to Earth. As it turned out, Prime's fears were well founded. The U.S. government had used parts from Megatron to create Serpent O.R., a cyborg designed to be a perfect weapon. A raid by Cobra allowed it to escape and gather an army of Decepticons on Cybertron, killing Bumblebee in the process. Despite the grief of losing Bumblebee, Prime continued on and rallied his comrades to do the same. Attacking the Autobot capital city, Serpentor's forces proved overwhelming, and Prime surrendered to ensure the Decepticons would cease fire and not kill another comrade. Realizing that Serpentor wanted the Autobot Matrix of Leadership, Prime broke free as Serpentor was distracted, but was unable to kill him. He was promptly attacked and nearly beaten to death by Razorclaw and Motormaster. He was subsequently forced to watch as Serpentor opened the Matrix. In doing so, Serpentor was not only reformatted into a transformer-like mechanoid, but was also shown the futility of the fighting by the Matrix. At this point, Cobra Commander was able to take control of Serpentor's body. In an attempt to stop him, Hawk opened the Matrix and was transformed into a great leader, rendering Cobra Commander comatose. As the Joes prepared to head home, Prime promised to record the Hawk-led humans' future.
There have also been a number of spin-offs based on the toys including a comic book series, an animated television series, and a feature-length animated movie. The original series program was followed by a number of spin-offs with varying levels of popularity. A live-action film series directed by Michael Bay has produced five films, with more planned.

Mission Racer Optimus Prime features a pull-back gimmick by using a rubber band: insert the rubber band onto the front and rear post, then place Optimus Prime onto the ramp and pull his trailer backwards, and release the trailer for allowing the truck to zoom forward. The rubber band also has Optimus Prime's name and the Autobot insignia tampographed oh it.
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.
Based on the Classics toy line, the Timelines 2007 story is set 15 years after the end of the Marvel Comics story (ignoring all events of the Marvel UK and Generation 2 comics). According to exclusive bio information in the Transformers Collectors' Club magazine #15, Hot Rod followed Optimus Prime back to Cybertron from the Planet Klo. Once back, Hot Rod took up racing, but after a while found it pointless. Optimus Prime assigned to help organize the millions of Cybertronian refugees who returned to their home world. Hot Rod chaired the Cybertron Grand Challenge race, a race which featyred combined Autobot/Decepticon teams. With his maturing Hot Rod changed his name to Rodimus and was chosen to return with Optimus Prime to Earth to stop Megatron. Optimus Prime returned to Earth commanding Bumblebee, Cliffjumper, Grimlock, Jetfire, Mirage and Rodimus. When the Cybertronians Skyfall and Landquake arrive on Earth unexpectedly, Megatron attempts to destroy them, but Optimus Prime and his Autobots are able to drive Megatron away. Rodimus is wounded on a mission with Optimus Prime, before being brought back to the Autobot base.
Prime filled one of the chase figure slots for the tenth wave as well. This rare figure was the same as the regular Super Mode PVC, except instead of wielding his Convoy Gun, Prime was armed with the Star Saber sword. As with the previous chase figure, it could only be found in one out of every ten cases, and took the place of the full-colour Prime figure in that assortment.
In Transformers: Alliance, Optimus Prime and the Autobots aid the human soldiers after the battle in Mission City and destroy the Allspark-powered machines that were created. A trailer is obtained for Optimus Prime to carry the remains of Jazz. The Autobots leave Mission City as the Sector 7 personnel arrive to claim the remains of the Decepticons. About a month later, Epps and Lennox contact Optimus Prime about aiding them in escorting the remains of the Decepticons to the naval yard. They are spied on by Barricade, who transmitts the information to Starscream.
Optimus Prime is among the three Autobot figures available to play in the Monopoly Transformers Collectors Edition game.[28] As the figurehead of the entire Transformers franchise, Optimus Prime has been on more pieces of merchandise than can be stated here. Several statues and busts of Optimus Prime as well as Optimus Prime themed objects have been released by various companies since the return of Transformers to prominence, such as the "Optimus Prime Oral Care Station". Other figures released include various PVCs as part of Takara's "Super Collection Figure" line, which were later imported as part of Hasbro's "Heroes of Cybertron" series. Larger "Mega Collection Figure" PVCs were articulated and came with energy axe and gun figures. As part of the merchandising wave for the first Transformers film in 2007, Hasbro's Playskool line released a Transformers-themed version of Mr. Potato Head based on Optimus Prime. To keep with the potato theme, the toy was labeled "Optimash Prime" and the packaging included the slogan "More than meets the fry", a potato-oriented version of the Transformers slogan "More than meets the eye".
What makes LEGO sets seem more expensive now is that the effective piece count seems lower. I remember that in the 80s, each set was full of bricks that were not overtly specialized only to that set. So they were useful for more things. Now the sets usually come with less bricks and plates (things that could be useful everywhere) and bring more things like minifigure accessories, flick fire missiles and other things that are not that useful. Although I think that everything was far worse in the late 1990s/Early 2000s than it is now.
The Premium Series Optimus Prime is both a retool and a redeco of the Leader Class Optimus Prime toy. The major selling point is a more movie-accurate head sculpt with longer ears and detailing based on the final CG head design, and a flip-out energy sword to replace the ion blaster that was included with previous versions of the toy. This energy sword is detachable and attaches where the Ion Blaster did, compatible with non-premium Optimus Prime Leader-class-based releases. Because his ears are much longer, the truck roof panel that hides his head now has two holes cut into so the head can fit inside the cabin.
Optimus Prime can also combine with Leader-class Jetfire to form Jetpower Optimus Prime by slightly transforming his backpack and feet. Sadly, this takes away from his leg articulation, because otherwise he could never support the massive backpack he has in this mode. However, fans have created alternate configurations that increase leg articulation and movie-accuracy.

Released as part of the Energon Igniters Power Plus Series subline, this Optimus Prime is a Scout-sized mold that converts from robot to truck based on his appearance in Age of Extinction in just a few steps. His only articulation is the swiveling upper arms & pivoting arm joints, and his fuel tanks also doubles as a flip-out cannons, activated in vehicle mode. As with all Nitro and Power Plus figures, Optimus also comes with an energon core, which allows his vehicle mode to propel forwards.
Optimus Prime is the fictional protagonist of the Transformers: Robots in Disguise (Fire Convoy in the original Japanese version) branch of the Transformers universe.[38] Based on the character of the same name, Prime once again leads the Autobots against the Decepticons. His voice actor, Neil Kaplan, does his voice in a style reminiscent of that of Peter Cullen, the voice of the original Optimus Prime. Wired Magazine nominated Fire Convoy as one 12 most ridiculous Transformers ideas of all time.[39]
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