In Transformers: Decepticons, Optimus Prime lands on Earth along with the other Autobots to stop the Decepticons. Optimus does not appear until Megatron is released and Starscream escapes with the Allspark. Optimus fights Megatron, but is defeated and is killed while Megatron gives chase to his traitorous second-in-command. In the 2009 Revenge of the Fallen video game by Activision, Optimus Prime is among the playable characters.
In the United States, Canada, and Hasbro's Asian markets, Masterpiece Movie Series Optimus Prime was exclusively available from Toys"R"Us, whereas in Spain, he saw a wider release, being at least available via the Spanish subsidiaries of Amazon and Carrefour. It's currently unknown if he was also available in stores, or limited to online purchases. In Greece, he was officially available via at least one toy store chain, aptly named simply "Toys-Shop", but again might have been available online only.
The earliest version, as shown in the first patent application for the toy, was to have the Prime cab be a triplechanger, turning from truck cab to jet or robot. The nosecone of the jet and robot legs were released by the Powermaster lock in the same fashion as the legs in the final version. Optimus would have had winged arms in non-super robot mode. The super robot mode's head was also integrated into the trailer's hitch... and lacked a faceplate.
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.
Produced to coincide with the 20th anniversary of The Transformers: The Movie and its release on DVD by Sony, this edition of Prime is a redeco of his 20th Anniversary figure. It replaces the original's metallic paint with flatter colors and does away with any and all vacuum-metalized plastic, as well as altering several other small details across the body, like the color of the lights on his feet and chest.
Platinum Edition "Year of the Snake" Optimus Prime is a redeco of Energon Super Class Optimus Prime. In lieu of combining with his drones, Optimus Prime can also combine with Platinum Edition Omega Supreme to form what his instructions also call "Super Optimus Prime". The drones are color-matched to Omega Supreme, and can attach to four connectors on his body. In an undocumented feature, Prime can also merge with Energon Wing Saber.
In Transformers: Autobots, Optimus Prime meets up with the other Autobots to give further commands to his troops. Create-A-Bot, the new rookie, is eager to help in the cause, but Optimus tells him to sit back while the other Autobots fight the Decepticons. Create-A-Bot finally defies orders and completes a mission against Optimus's council. After nearly getting himself and the other Autobots killed, Create-A-Bot apologizes to Optimus personally. Taking pity on the newcomer, Optimus lets him off with a stern warning, and they move out together to face Megatron, who has absorbed the power of the Allspark. Optimus fights Megatron, but Megatron gains the upper-hand. Optimus is on the verge of defeat when Create-A-Bot takes the Allspark and drives to Megatron's chest, weakening Megatron but mortally wounding himself in the process. Optimus fights Megatron again, defeating him. As Megatron is on the ground, he tells Optimus that if he kills him, the Allspark will be destroyed and Cybertron will never be restored. Optimus says to Megatron that he will do what he must do, then he raises his sword and kills Megatron, destroying the Allspark in the process. Create-A-Bot also dies, but not before telling Optimus his final request to make Earth the new home of the Autobots and to protect the humans. The game ends with Optimus sending a message to all surviving Autobots taking refuge among the stars.
Optimus Exprime's electronics are slightly less complex than those of Kenzan and Gekisoumaru. In robot, dragon, and train modes, pressing a button sets off red flashing LEDs and causes him to play one of seven sounds or phrases (which do not change depending on the mode). Pressing and holding the button activates a combination mode similar to the ones found in Kenzan and Gekisoumaru. Optimus Exprime calls on Kenzan and Gekisoumaru to combine with him, and then combination music plays as the LEDs flash blue, purple, and red (with the two halves of his Autobot insignia showing different colors!). Completing either combination by snapping the correct kabuto helmet into place ends the combination mode and triggers another phrase.
Prime's homecoming was not all he had hoped for, for Shockwave had taken control of the planet. Prime and the other transformers were forced to go underground, waging a guerrilla war against the Decepticons. Around this time, Cobra would attempt to steal Teletran-3, but their attempt to teleport directly into the chamber would set off a catastrophic malfunction, one that threatened to crack open time itself. Optimus Prime and the Stunticons were amongst those who found themselves sent back in time. Optimus was reformatted into a 1920s semi-truck and was eventually rescued by Roadblock, Beach Head and the Baroness, who helped him capture the Stunticons.
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.