Part of the first wave of Prime: Robots in Disguise Weaponizer Class toys, Optimus Prime is a large toy, similar in size to Leader Class figures from previous Transformers toylines. He features a simpler transformation and design compared to previous Leader-sized figures, with him having fake chest windows (again) and a simplified, hollow truck rear where his feet, arms, and fake chest windows are plainly visible. He comes with a blaster which can mount onto his hands, shoulder-pads, and the sides of his legs/truck rear.
In a completely different scenario, Optimus agreed to Prowl’s plan to go on the offensive and try and discover the full extent of the Decepticons’ plans. Optimus nominated Prowl, Bumblebee and Mirage to go along with him on the mission. The group refuelled with the gas that Sparkplug brought back from the Autobots’ secret storage area, and took off. The group soon happened upon the Decepticons’ lab in the middle of a barren, polluted wasteland.
This redeco of Leader-class Optimus Prime replaced most of the plastics in the cab robot with colored translucent equivalents, with chromed silver wrist-pipes, a golden chrome Matrix, and red chrome window frames. His trailer remained opaque, but was cast in much deeper red plastic, with a more metallic silver used for his cannons. He was available only in a Toys"R"Us Japanese exclusive giftset released in October 2005, with a redeco of Wing Saber, and the Coby Sen'yō Rumble.
Optimus Prime was subject to several molding and color variations in his early days. The earliest release of the figure featured larger fists, a gun with a thick, round barrel, a slightly-differently shaped gas pump, grey rockets, a grey Roller, a grey launcher in his Combat Deck, and metal plates in the floor of the Combat Deck (a holdover from the Diaclone version of the toy, to which the magnetic feet of the pilots could cling). In short order, his fists were slimmed down, the gun's barrel was pared down to a more slender form, the gas pump's shape was altered, the rockets and launcher were recast in black plastic, the metal plates were removed from the Combat Deck, and Roller's color was changed to a light blue. Along with Roller's color change, however, the Combat Deck's drone pod also became light blue, and a third running change soon followed that saw it restored to its original darker blue, and Roller changed along with it. These modified components would become the default accessories used by subsequent reissues of the Prime toy would take, though Roller stills fluctuates back and forth between grey and dark blue, depending on how show-accurate each reissue wants to be.
Fire Blast Optimus Prime is a redeco of the previously released Power Hook Optimus Prime fast action battler. The color scheme is loosely based upon Generation One Rodimus Prime, explained rather oddly in the card bio as being the camouflage Optimus took while hunting Decepticons on Mars post-movie. ...Because there are so many longnose cabs driving around Mars. Yeah.