The third version  would quite possibly have been the most gimmick loaded Transformer in the history of the line, simultaneously being a Powermaster, Headmaster, and triple changer. The Headmaster also would have been a triplechanger, turning into a sort of armored four-wheeled rover (Roller II?) and robot as well as a rather silly looking Optimus Prime head with four vertically aligned wheels jutting off the sides. It seems that when the extra Headmaster gimmick was scrapped, the super mode head remained separate rather than being reintegrated into the trailer hitch such as on the earliest design. Notably, the body of this design is extremely close to the final design.
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.
The Reveal the Shield Legends Prime mold was redecoed again for the inclusion in the second EZ Collection wave. This version of the figure replaces his blue on the head with black, and the blue paint on the legs is stripped off, revealing the black plastic underneath. and like the Megatron redeco in the same wave, features a Generation 2 Autobot symbol instead of a Generation 1 insignia.
When Bumblebee, Hound and Spike brought a badly-damaged Starscream back to the Ark, Optimus struggled with the ethical implications of allowing Wheeljack and Ratchet to mess with the Decepticon's logic circuits, but gave them the go ahead. Starscream proved to be amnesic, and Optimus was able to take the opportunity to help him as much as possible, even physically preventing Megatron from retrieving his former lieutenant when Starscream opted to stay with the Autobots. Though Starscream left as soon as he regained his memory, Prime reflected that they'd learned that maybe it was possible to reason with a Decepticon. Redemption Center
This line features robot versions of various Star Wars characters. Confirmed figures are Darth Vader, Luke Skywalker, Boba Fett, Commander Cody and Jango Fett. Darth Vader turns into his custom Tie Fighter while Luke Skywalker turns into an X-wing. Jango Fett and Boba Fett become Slave I, and Commander Cody turns into a Turbo Tank. There is combiner of Millennium Falcon of two characters, Han Solo and Chewbacca and Primus/Unicron-like Death Star that transforms into a giant Darth Vader. There are more Star Wars characters into Transformers like General Grievous and Obi-Wan Kenobi. This line was later revived and merged into the Transformers: Crossovers toy line, many more Transformers included characters from Star Wars: The Clone Wars like Ahsoka Tano who transforms into her Jedi starfighter, and Captain Rex who transforms into an AT-TE.
I agree with Aidan but would expand on his point. It’s not just that the sets seemed bigger; they were. As the relative complexity of sets has increased, so too has the piece count, but there has been an overall decline in the size of the models due to increased build complexity and a corresponding reduction in size of the pieces required to create such detail. The negative affect on perceived value in this is apparent, though I would argue, misguided when one considers the build quality and detail of new and recent sets.
He made it out of the building and ran into the real Sunstreaker, who blasted the 2 clones following Hot Rod. Sunstreaker ignored Hot Rod's warning about Scorponok's army and stormed into the building so Hot Rod painfully wired himself to send a distress signal. When Sunstreaker's real head was later disabled by Hunter, the Headmaster clones shut down, which Hot Rod explained to Grimlock. The group was surprised by the arrival of Shockwave, but Ultra Magnus had heard Hot Rod's distress call and was on his way to Earth. After Scorponok knocked out Sludge and Grimlock tended to him, the remaining Dynobots offered Hot Rod a lift aboard the Monsterbots' ship. He refused though, and made it back into Machination HQ to take care of something "personal". He eventually found Scorponok's real head. Hunter also showed up and let Hot Rod know how to disable it, but before he could do so, Scorponok grabbed him. Before Scorponok could crush Hot Rod's head, the Dynobots showed up and began to battle Scorponok. Hot Rod told Swoop which wires to sever, and he did just that, reducing Scorponok to a catatonic state. Ultra Magnus arrived took everyone back aboard his ship, which later docked with the Ark-32. Within 3 days, Hot Rod was fully repaired, with a new body form design.
Having launched a painstaking review of each of those 14,200 pieces in the LEGO universe, the Design Lab found that 90 percent of new elements were developed and used just once. And many components were duplicates. Among the dupes were eight minifig police officers and six minifig chefs, with barely decipherable differences between them. The Lab dealt with the redundancies by slashing the total number of components by more than 50 percent. When it reduced the product portfolio’s minifig chef population from six to one, designers protested and longtime fans howled. To calm the fans, LEGO tried humor: it held a mock online memorial service for the “dead chefs.”
The toy's primary gimmick is its auto-transforming trailer, which assumes one of three configurations when triggered by an infra-red signal transmitted from the cab robot. Transforming the cab into robot mode will cause the trailer to automatically flip open into a battle station for Mini-Cons, which Prime can stand in the centre of. The base features a central tower with a pop-out artillery emplacement and a mount for Prime's large cannon; a rotating missile-firing turret; two Mini-Con storage bays, one of which featured a manually-activated tab to launch Mini-Cons out; and two live Mini-Con hardpoints, one of which pops up a non-firing turret, the other activating a laser noise.
Like several new-mold Revenge of the Fallen toys, Optimus Prime suffers from some cost-cutting measures that affected the final production version of the mold. According to Hasbro's stock photos/back-of-box photo of the hand-painted prototype, the toolboxes on the sides of his legs were designed to fold away further for a sleeker, cleaner look. Additionally, the rear tires would have been able to split in half, with the inner half of the tire going inside the outer half to recreate the thin tires seen on Prime's CG design. Some articulation was lost on the toy between Hasbro stock photography and the final release. His fingers are no longer articulated; instead, the entire hand is now one molded piece. Finally, the lower arms appear to have been originally designed so that his hands could slide in or out of them during transformation. Sadly, he also lacks rubber tires, which the original movie Prime did have. Meanwhile, the articulated fingers was later used for the Asia Premium Series & Movie The Best releases.
Nonetheless, I remain a big fan of Lego and although I think they have somewhat moved away from their roots with the excess of licensed products (and the earlier licensed products were, in my opinion, not very good because they contained too many specialized non-generic pieces that weren’t useful for generic building. But that situation is improved and in particular we have found the Star Wars sets to be of most value for generic building, because they generally have very few really specialized pieces (although to be fair the sets are most useful for building other spaceships, etc).
Ultra Magnus is a redeco of the Diaclone "Powered Convoy" figure, itself a redeco and slight retool of "Battle Convoy", the toy that became the original Optimus Prime figure, sporting a new trailer. One of the last few Diaclone toys to be released in the Transformers toyline, Magnus was recolored from the original toy's dark blue, red and black color scheme into a more patriotic red, white and blue, though his chestplate, which was rendered white in his package art followed a more the blue color scheme of his shoulders. He transforms into a Freightliner COE, towing a car-carrier trailer capable of transporting up to four normal-sized Autobot cars. As with Optimus Prime, his cab transforms into a small robot, which can then combine with the trailer to form a "super robot", although all original Generation 1 fiction prior to the 21st century ignored this and simply rendered the super robot as Magnus's default robot form. To facilitate this combination, Magnus sports a slightly longer front axle than Prime, thereby creating tabs on either side of the cab that slide into grooves in the trailer to help lock the small robot into place. He is armed with a rifle sporting two handles that allow either of his robot modes to hold it, and two shoulder-mounted missile launchers, whose spring-loaded firing mechanism was removed for the Hasbro release of the figure.
In a later scene, Hot Rod fled the city with Kup and the Dinobots when Galvatron, a recreated Megatron, attacked the city again, this time only smaller, after being reformatted by Unicron and taking revenge on Starscream. After meeting up with the other Autobots after a series of adventures on the planets Quintessa and Junk, Hot Rod returned to the other Autobots and rushed to Cybertron to save it from being eaten by Unicron. Facing Galvatron inside Unicron's body, Hot Rod was able to get his hands on the Autobot Matrix of Leadership in the confrontation, as the voice of Optimus Prime was heard saying, "Arise, Rodimus Prime". The power of the Matrix reformatted Hot Rod into Rodimus Prime, maturing him, giving him a larger body, deeper voice, and different vehicle mode. It also destroyed Unicron's body, bringing the events of the film to a close with Rodimus Prime as the new Autobot leader.
This figure is an exclusive to San Diego Comic-Con 2011. The toy comes in a packaging shaped like the Matrix of Leadership, which one could wear around their neck, preferably at the convention itself, so passers-by can exclaim "WHERE THE HELL DID YOU GET THAT?" and then try to get one themselves. The Matrix itself comes packaged in a box that is designed to look like Optimus Prime's chest, and opens accordingly. The chest window doors are sealed with a round magnet.
The single carded release of Optimus Prime is a redeco of Revenge of the Fallen Legends Class Optimus Prime, exclusive to Walmart in the US and Asda in the UK. Deco changes included in this toy are the top half of the knee armor's blue being omitted and an Autobot insignia tampographed on the left knee, and similar to the Legends Class Power Armor Optimus Prime: the red arms, and the abdomen was replaced into blue.
A Japanese-exclusive, the final new-design G1 Convoy toy was a departure from previous versions. He now transformed into a small extended hood cab truck of made-up model pulling an implausibly large trailer equipped with motorized caterpillar treads. The trailer could additionally pull along the auxiliary trailer transformer Grandus, on which the shuttle Sky Garry could land, forming the spaceship "Battlestars". Even without combining, Star Convoy's truck mode was a behemoth, including a Micro Trailer semi as a small accessory and an upgraded Roller that was now patterned after a tracked ballistic missile carrier.
As this is the Unicron Triogy we're talking about, it should come as no surprise that Prime can transform into a Super Mode by combining with his trailer, which becomes a massive winged backpack and a pair of large boots, generally evocative of God Ginrai. To complete his Super Mode look, a small lever of the back of Prime's head raises his traditional mouthplate into place, covering his Optimus Primal-style mouth slot, and two "crests" fold out from either side of his helmet. Hasbro's instructions and stock photography for the figure orient the wings so that the two cannons point over Prime's shoulders, but Takara's have wings arcing up past his shoulders, with the cannons slung under his arms. This was the way Prime appeared in the cartoon series, and was the way all subsequent Hasbro redecos of the toy were positioned. In Super Mode, Prime is a rather top-heavy robot, and his hip joints are not that tight, which makes standing him up a challenging prospect.
He and Metroplex were soon rescued by Bumblebee and Ratchet and they promptly escaped back to Earth, just in time to rescue Grimlock from a Decepticon hit squad. After being misled by a phony distress call, Optimus and his team had to face an assault on the Ark. They repelled the Decepticon attack, but Prime decided that the time was right to go to Cybertron and liberate the Autobots whom Shockwave had enslaved. The Autobots again used the space bridge to reach Cybertron, and mounted an assault of their own on the Decepticon fortress. After fighting their way through the defenses, Optimus and Bumblebee faced down Shockwave himself, defeating the Decepticon with some help from Grimlock. Transformers G1: Awakening
Part of the first wave of battle upgrade Hero Mashers toys, Optimus is a non-transforming robot who can swap any of his parts out with other Hero Mashers figure to create many combinations. He includes his iconic Energon axe, a large projectile-launching gun, another large gun, two missile packs, and an arm for Ultra Magnus. Optimus Prime also has a pointing right hand, which allows you to do a certain Optimus Prime pose in a Dreamwave Productions comic.
Prime is armed with a spring-loaded missile launcher that stores on the rear of his truck mode (which becomes the backpack of his robot mode) when not in use. Like most of the weapons of the Energon line, it sports a 5mm post, allowing it to be held by most every Enegon figure, to combine with assorted other weapons and Energon weapons released in the series, and to peg into numerous compatible ports shared by many figures, like the hole in the radar of Prime's own trailer, or even conveniently placed 5mm screw holes like those of the Prime Force.
The cab transforms into the robot mode of Optimus Prime himself, with the addition of a pair of removable blue fists that plug into his headlights. The fists themselves do not store anywhere in vehicle mode, but can fit easily in Prime's opening chest compartment (originally designed to accommodate two Diaclone driver figures). Prime is armed with a black laser rifle that, due to design, he cannot hold straight.