the Masterforce anime never, ever explains or even acknowledges that Ginrai looks like Optimus Prime. (1988)
Optimus laughs. (2009)
Optimus doesn't want to see something funny. (2012)
Starscream shows the other Decepticons a video of a tap-dancing monkey. (2013)
not a single Decepticon can figure out who this mysterious cloaked figure is. (2020)
The Decepticons' top-secret base. (1985)
Optimus lifts an entire oil tanker. (1984)
Brainstorm does the sign of the Cross. (1987)
the G1 cartoon episode "The Insecticon Syndrome" gives Spike his own gun. (1985)
Derrick J. Wyatt personally requested the TFWiki page for Animated Cliffjumper to be renamed as such when it was originally called "Little red Autobot" back when his only appearance was as an unnamed, voiceless cameo. (2008)
Episode 12 of Cyberverse features the one and only human character to appear in the entire show. (2018)
two kids use their Nightscream and Jetstorm figures to fight over fries. (2000)
the Animated episodes focusing on the Constructicons were not broadcast on Japanese television due to them not having toys. (2010)
Megatron's original profile describes him as being able to use his cannon to link up to a black hole and draw antimatter from it. the profile on the box omitted the cannon part, thus the Marvel UK and IDW comics draw Megatron as directly channelling this power through his eyes.
Swerve's role in More Than Meets The Eye was originally meant for Bluestreak, but the creative team of the Robots In Disguise comic wanted him in their book. He then ended up in MTMTE anyway after the RID team ended up doing nothing with him. (2012-2014)
a whole bunch of toys of Optimus Prime that turn into things that aren't trucks.
an IDW cover features Optimus Prime in a Barack Obama campaign homage. (2010)
The very first promotional poster for IDW's Transformers homaging the iconic Uncle Sam "I want you for U.S. Army" World War II recruitment poster. (2005)
Dickbot The Blender Guy. (2009)
concept art of Daytrader from The Last Knight gave him a head based directly on his actor, Steve Buscemi. (2017)
Frank Welker provided the voice of Soundwave for not just the English, but also the European French, Castilian Spanish and Italian versions of the Revenge Of The Fallen movie. (2009)
the actress who plays the girl with the pony in the 2007 TF movie won the pony prop from the movie in an auction, and still owns it to this day. (2007- )
Michael Bay's real-life dogs, Mason and Bonecrusher, cameo in the Transformers movies. (2007-2011)
red herrings sprinkled throughout the run of More Than Meets The Eye suggested that Tarn was actually Optimus' old friend Roller. It was all misdirection in the end, with Roller being revealed to still be alive one page before Tarn's true identity was revealed. (2012-2016)