The earliest releases of Energon Optimus Prime have no ridges on the inside of the chest windows and a different head sculpt featuring an Optimus Primal-style mouth-slit in Prime's mouthplate. This was soon replaced with a full mouthplate, and it was this version of the toy which appeared in the Energon cartoon and was released by Takara. Other changes made to Takara's version of the toy involved a chromed front grill, more vibrant plastic colors on Digger-3 and Submarine-4, a darker blue plastic on Prime himself, and more intricate paint operations. Takara's release lacks the electronic sound effects seen in Hasbro's version, which were commonly gutted for the Japanese releases of any Autobot toys who had them, though Prime retains his light-up chest.
↑ The African American entrepreneur: then and now By W. Sherman Rogers page 321. Books.google.com. http://books.google.com/books?id=mbTUorcuXkoC&pg=PA321&dq=%22generation+2%22+transformers&hl=en&ei=woyoTPq8KI7hnQeIwOWjDA&sa=X&oi=book_result&ct=result&resnum=5&ved=0CD8Q6AEwBA#v=onepage&q=%22generation%202%22%20transformers&f=false. Retrieved 2011-04-04.
Cyber Slammers Optimus Prime is an amazingly cute truck that transforms into an amazingly cute Autobot. "Slam" his robot mode down into car mode and he rolls along for a while, then snaps back up into robot mode. Sure to please the toddler you brought with you to the PG-13 movie! Like most Cyber Slammers, Prime manages to cram most of his vehicle mode's major details into a compact, super-deformed version of that mode.
In the grand Optimus tradition, the cab of Laser Optimus Prime disconnects to become the highly poseable robot mode of Prime himself. Like Powermaster Prime and Hero Prime, the toy features the iconic windshield pecs and grill abs, despite not actually being formed from the actual truck components they emulate. In robot mode, pressing the button on Prime's cab (now on his back) activates a red LED in his right fist which illuminates his clear-plastic sword (which stores beneath his legs in truck mode).
Being a Combiner Wars Voyager, Prime is naturally capable of transforming into a torso mode to combine with any 4 Deluxe Class Combiner Wars-style toys, though his packaging call-out has him form Ultra Prime by combining him with Deluxe Class Skydive and Alpha Bravo as the arms, and with Firefly and Decepticon Drag Strip as the legs. He can combine with Sunstreaker, Mirage, Prowl, and Ironhide if one wishes to have an IDW-accurate Optimus Maximus.
Brian Colin, Peter Smyth, Mark Buffington, Josh H., Propelstalz, Mary Crocker, Wayne Moulton Jr, Mitch Gross, Jim Valko, Andrew Brown, Lucy Ravitch, Nicholas Duresky, Heather Hofshi, John Kemp, Thorsten Karge, Natasha Dzurny, Keith Ives, Benjamin Chan, Neal Bhatnagar, Justin Farr, Regan Lee, Elaine, Nate Fugal, Stephanie Tennison, Jon Rasmussen, Ryan Pulis, Owen Duffy, Colman Reilly, Anthony, Mark Richman, Alexis Ohanian, Steve, Greg “TVsEgon” Skinner, Andy Saavedra, Daniel, Willie Raymond Taylor III, Chad Ingham, Irene Christian, Clinton Richmond, Jamey Stegmaier, James Allenspach, John Howell, Leif Terry, Tiago Pereira, Nathan Heath, Grinidon, Roman, Berserker Hew, Clark Stacey, Ben Harkins, Kayvaan Ghassemieh, Travis B., Justin Myers, Magna Nordgard, Jim Griffin, Jeff, David Smith, Matthew Titelbaum, Dennis Hitzeman, Daniel Lieske, Michael Jantze, Ruddy, Tom Damico, Kelson, Michelangelo Grigni
Ten years after Unicron's defeat, Cybertron was seemimngly at peace, but Optimus still feared another attack from Unicron. Although the Autobot High Council dismissed his fears, a mental link with Primus confirmed that Unicron was still alive. Megatron's disembodied spark, trapped within the chaos-bringer, called out to Prime. Events overtook Prime as Unicron's four Horsemen, Rhinox, Airazor, Cheetor, and Terrorsaur, attacked Cybertron, devastating it. Prime's link with Primus allowed him to upgrade himself into his Energon form and drive them off.
Although MechTech Optimus Prime's deco is similar to the first Deluxe Class figure, some of his parts (robot shoulder flaps, chest piece/truck front) were recast in blue plastic (with the chest being painted red), and his paint applications on the pelvis, headlights & thighs are omitted. His front truck hood/backpack's deco is altered: the truck steps and the fenders were painted blue, and the gold sprays on the flame tampographs are removed, while he features additional flame tampos on both sides of his front hood, and an Autobot Insignia on his left robot shoulder. He still retains the light-piping gimmick, but cast in clear plastic, with the eyeballs being (halfheartedly) painted with clear blue. His MechTech weapon is cast in transparent orange plastic, with the exception of the scope/lever and the gun barrel, which remained opaque silver plastic due to being cast with unpaintable plastic. He also features Cyberglyphics on the left side of his vehicle mode front hood.
Part of TakaraTomy's Movie Advanced Series lineup, Revenge Optimus Prime is redeco of the 2010 Transformers Battle Blades mold, featuring darker plastic, a pair of flip-out swords (the first release of this mold) from the Hasbro release, and chromed fuel tank-guns & sun visors. His shins & wheel joints are bronze from the Hasbro release as opposed to the grey of Takara's Autobot Alliance release.
While the Transformers animated series came to an end in America in 1987 after The Rebirth, production was continued in Japan with three new, exclusive animated series spin-offs to continue the story. The first of these series, Transformers: The Headmasters, supplanted the events of The Rebirth, picking up one year after the events that saw Optimus Prime's return to life.
As part of the Robot Replicas line, this version of Optimus is a non-transforming action figure that utilizes Revoltech-style jointing. The sculpt hews much closer to the movie CGI model than is possible with the full transforming toys, plus the universal jointing of the line allows for his forearm to be replaced with his hand-cannon... or bits from other Robot Replicas.
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.
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.
For accessories, he comes with (according to his bio) "the ancient weapons of the Primes", such as his Nexus Sword (a reference to Nexus Prime), the Vector Shield (an upscaled, non-transforming version of the shield from his Cyberverse "Beast Blade" toy, and a reference to Vector Prime), as well as a generic cannon with a pressure-fired missile. All of his accessories can peg into his hands, right forearm, backside, and vehicle sides.
Optimus Prime is then informed that Megatron has infected the core of Cybertron with dark energon and is given the task to undo the damage done. After rescuing Omega Supreme, Optimus, Ironhide, and Prowl fight their way to the core, but it's too late. The core informs Optimus that it is far too corrupted. It can repair itself by shuting down, but it will take millions of years. By that time, Cybertron will have to become cold, barren, and uninhabitable. The core gives Optimus a small piece of itself, saying it will still survive as long as the piece does. Optimus accepts the burden and the core relinquishes the Autobot Matrix of Leadership.