Bumblebee appears as a DLC character in "Bike Rider 3: Time Rider" for 3DS, alongside the likes of Shuriken Sentai Ninninger, Crayon Shin-Chan, and Hatsune Miku. (2015)
hundreds of Decepticons and Sweeps are combined into a giant "Deceptigod" (2011)
Hot Rod sees alternate versions of himself from throughout the multiverse. (2013) After becoming Rodimus, the other Rodimuses appear again to help him in the final battle. (2014)
Starscream ponders various new bodies for himself. (2015)
a G1 Starscream toy can be seen in Top Gun. (1986)
the Smithsonian Air & Space Museum has a Transformers-themed exhibit, paying tribute to the scenes from Revenge Of The Fallen that were filmed there. (2009- )
the final wave of Robot Heroes figurines was THIS close to being released before being cancelled. (2008)
unreleased "Sideways Sneak Attack" set, with Sideways sporting battle damage meant to replicate that scene where he got cut in half.
unproduced Arcee, Bumblebee, Cosmos and Shockwave figures from the Titanium line. (200?)
cancelled figures from the final wave of Animated. (2010)
the unproduced Beast Wars Neo Unicron toy. (199?)
prototypes for the unmade Animated Marauder Megatron and Hot Shot toys. (2010)
concept art for a Powermaster upgrade for Animated Optimus Prime. (2010)
unproduced concept for a female ladybug from Takatoku's Beetras toyline. (imported by Hasbro to become the Deluxe Insecticons) (1984)
the Decepticons create an Insecticon Swarm on Cybertron, ravaging the planet and nearly killing the Autobots. (2010) Sunstreaker, not at all traumatised by that incident, adopts one and names him Bob. (2011)
Simon Furman made Sunstreaker a Headmaster in IDW because he was the character who'd least want to be a Headmaster. (2007)
the name of the Prime who preceded Optimus in Aligned continuity was inconsistent- in the War For Cybertron game he was Zeta Prime, but in the Exodus novel he was Sentinel Prime. Hasbro solved the issue by declaring that his full name was "Sentinel Zeta Prime" (2011)
Townsend Coleman reprised his role as Animated Sentinel Prime for TFNation. (2020)
the casting of Townsend Coleman as Sentinel Prime promptly inspired the designers of Animated to make him look like The Tick. (2008)
Sentinel Prime's role in Animated was going to be filled in by Rodimus at first, before Hasbro vetoed the idea, not wanting Rodimus to be portrayed as a massive jerk. (2008)
Animated Sky-Byte has three different designs: the 'official' one from the Stunti-Con Job, another from the Allspark Almanac 2, and a concept sketch done by Derrick Wyatt. (2010)
the G1 episode 'Hoist Goes Hollywood' misspells Tracks' name as 'Trucks'. it's unknown if this was a legit spelling error or an extension of the running gag from the episode where the director constantly gets Hoist's name wrong. (1985)
Shockwave makes a blink-and-you'll-miss-it cameo on a newspaper in Revenge Of The Fallen. (2009)
An extended version of the 2007 movie, containing two minutes of extra footage, was released to IMAX theatres. The footage has never been made available elsewhere. (2007)
Super Cross, the original planned sequel to Armada. it would have involved Unicron abducting and mutating Transformers from across the multiverse, including characters from G1 and Beast Wars, to fight within his body so that he could absorb the sparks of the victors. (2002)