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.
Available only with the Bot Shots Dragon Track set, this version of Optimus Prime is a new mold, changing from a robot form resembling Generation 1 Optimus Prime, into a truck with a rocket exhaust molded into the back of its trailer. As a Flip Shot, he, er, flips up when auto-transforming. He comes with a launcher that can be connected to the track, as well as Flip Shot Megatron and his launcher.
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".
The problem there is that Star Wars took over the Space theme and Harry Potter took over the Castle theme. Just keeping up with the kids- sign of the times. What’s a castle lover to do? Compare 6075 (Castle) with (7094 Kings Castle Siege) and 4757 (Hogwarts) and they all have their own fantastic attributes. Sell the Harry minifigs and buy some crownies- problem solved.
Originally, Optimus Prime was created as the leader of the Autobots, though it is unknown how he was created or his origins. In a possible future, Megatron was threatened by the existence of the Aerialbots and had Shockwave build a time machine to send them back in time to get rid of them. However, he only ended up changing history for the better. In the revised timeline, Optimus Prime began his life as a robot named Orion Pax, a mostly defenseless dock worker during the Golden Age of Cybertron nine million years ago, with a girlfriend named Ariel and a best friend named Dion. During this time, a new breed of robot with new flight capabilities appeared on the planet that Orion idolized. When Megatron, the leader of the new group of robots, approached him with inquiries about using one of the dock warehouses, Orion was swayed by Megatron. Both Orion and Ariel were severely wounded when Megatron and his forces attacked in order to claim the energy stored there. Searching for someone to help them, the time-displaced Aerialbots took Orion and Ariel to the ancient Autobot, Alpha Trion, who used them as the first subjects for the new reconstruction process he had developed involving rebuilding the frail Autobot frames into more battle-hardy configurations.