Part of the first wave of the Combiner Force assortment, Optimus is a roughly Scout-class sized figure that changes from his futuristic truck with a combiner chest that doubles as his spoiler into a robot in three four extremely simple steps. His individual robot mode only has limited articulation on his shoulders. He also has a little green arrow above the connector on the truck bumper indicating where to crash him to combine with other figures. A 5mm post hole on top of his vehicle mode can accommodate a compatible accessory or Weaponizer Minicon, though he cannot use it in his individual robot mode.
Each arm features flip-out blades that trigger when a button on the forearm is pressed. Each of these blades has a Cyberglyphic symbol on it. The blades severely restrict Prime's arm articulation when retracted, as they get in the way of the kibble, but as there is very little one can do with Prime's arms without causing the blades to deploy, this is hardly noticeable.
He comes with the Star Saber, which has a 5mm handle and a post on its hilt, as well as two spring-loaded, missile-firing "Ionic Pulse Launchers" (which are called "Eaglefire Missile Launchers" in the instructions). The launchers each feature a 5mm post, have flip open prods, and can peg onto the ports near the wheels on his robot back, giving him a pair of back-mounted rocket engines.
Alternators Optimus Prime transforms into an accurate 1:24 scale Dodge Ram SRT-10. The vehicle mode features rubber tires, functional steering, opening hood, tail gate and doors with a detailed cabin interior. Several of the details of his robot mode body are based on the sculpt of the 20th Anniversary Optimus Prime figure, but the head itself shares more similarities with the Powermaster mold. He is armed with a small pistol which transforms into his vehicle mode engine.
Menasor cut off Prime's escape and handed him the Reflector trio, who confronted Prime with a hologram of Serpent O.R. The new Decepticon leader carried Megatron's memories and information downloaded from Soundwave, from which he learned of the Matrix of Leadership. Serpent O.R. offered Optimus a trade: hostages and peace if he handed over the Matrix. Optimus agreed.
Hot Rod then fought in the battle of Autobot City and saved the city for if he had not attacked Megatron, he would have destroyed it. Due to his attempted intervention in the epic battle between the Autobot leader, Optimus Prime and the Decepticon leader, Megatron, Prime was lethally injured. Before he died, the Matrix got passed on to the Autobot Ultra Magnus, whom he referred to as "old friend", despite protestations.
Optimus Prime grew concerned when Hound picked up a communication from Laserbeak that indicated the Decepticons had grown interested in a mysterious structure near a human village. Prime and a team of Autobots headed out to investigate, and they battled the Decepticons over the structure, which turned out to be a harmless windmill. Laserbeak's Fury
The first in TakaraTomy's Hybrid Style series, Galaxy Convoy is a partly die-cast figure with scaled-down equivalents of the accessories that came with the Leader-class figure. This highly-intricate figure retains all the transformation abilities of the original figure—vehicle, flight mode, robot, and Super Mode—and even its Cyber Key-activated features (even coming with two keys so they can be deployed simultaneously), with additional touches like spring-loaded mechanisms that snap his cannons into place, and hand-grips on the weapons for Super Mode. While he does lack electronics or firing missiles, Prime still includes his Matrix, super-tiny yet still removable, and has four alternate sets of hands: two clenched fists, two with pointing index fingers, two with splayed palms, and two curved hands for holding his various weapon handles. Given the figure's small size, a reconfigurable head was infeasible, so it also comes with an alternate Super Mode head with a mouthplate and crests deployed, though the standard head must be attached in order for the figure to be transformed to vehicle mode.
Part of the first assortment of "Custom Kreons", this version of Optimus Prime comes with a buildable parts rack on which to hang/store his many many extra pieces. His tampographs are much more heavily-detailed than the original Kreons, based on the original Optimus Prime toy. His "normal" helmet (and small sword) are chromed, plus he comes with an extra clear-plastic helmet, torso and legs. He also has a pair of extra arms (originally from the Kre-O Battleship aliens), plus a buildable large rifle, a buildable wing-pack, and a ray pistol (originally an Andorian blaster from Kre-O Star Trek).
The original Optimus Prime toy was a re-deco of the Diaclone Battle Convoy toy and transforms into a late 1970s red Freightliner FL86 Cab-over-Engine triple-axle semi trailer truck. The truck mode features rubber tires, and the cab is partially constructed of die cast metal. The windscreen section can open to reveal ultimately-unused seats that were originally designed for driver figures part of the Diaclone line. His trailer opens up into his Combat Deck, which features a missile-armed repair drone pod (with seating for one) mounted upon a boom lift arm. Situated in the base of this boom is a spring-loaded launcher that can be used to launch Roller out of the Combat Deck. Roller himself has seating for 4 passengers, and can be equipped to carry Optimus Prime's rifle or a fuel pump. The interior space of the trailer allows storage room for one Autobot car. In robot mode, he is armed with a black laser rifle, that, due to design, cannot be held straight. His fists are separate pieces which must be stored elsewhere in vehicle mode; there are pegs to store them in the trailer.
In robot mode he resembles previous Optimus characters: his angular chest windows are reminiscent of Cybertron Optimus Prime, while his near-animalistic limbs and color scheme are evocative of Beast Wars Optimus Primal. He has excellent articulation due to his many ball joints, and is armed with a rifle. The flame attachment can fit onto the end of the (non-firing) gun barrel.
Reissued in 2003 as part of Takara's Transformers Collection line of reissues. This version (#13 in the Collection series) was retooled from the 2000/2002 Rodimus Major tooling in order to make the fists and engine block hole wide enough to equip Firebolt. In addition, the original 2 guns had their posts modified so that a Targetmaster Hot Rod could still use them, if the owner chose to.
I you can get an official reissue for around the same price, do it. I lucked out and got an opened but mint Encore for $50 last week but you'll be getting lucky that way. All Hasbro reissues have short smokestacks and long stacks are harder to get separate to swap out. Average price for a Japanese reissue is around $100 opened. If you are on a budget and the kid doens't care about slight issues, the $40 KO would be the better option.
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.