In the Archie Comics, Metal Sonic would undergo various revisions before ultimately sacrificing himself in a pool of lava not unlike his OVA counterpart. Many years later, this robot would be revived and turned into Shard the Metal Sonic. His color scheme is based on Metal 3.0.
Sonic the Hedgehog does not know what hedgehogs look like.
Scott Pilgrim's high school band "Sonic & Knuckles" is a very subtle reference to the 1994 Sega Genesis game Sonic & Knuckles.
According to Ian Flynn in the 1/11/21 BumbleKast, Dr. Starline's computer password is **********. His password is not censored. His password is literally **********.
Sonugh the Boghog is Sonic the Hedgehog's ancestor. Sonic met him when Dr. Robotnik sent him back to Prehistoric Mobius in Archie's Sonic the Hedgehog #12.
Amy Rose seems to be the only character in the main Sonic the Hedgehog cast who can handle a casual punch from Knuckles.
Scott Pilgrim's high school band "Sonic & Knuckles" is a very subtle reference to the 1994 Sega Genesis game Sonic & Knuckles.
Sonic the Hedgehog does not know what hedgehogs look like.
Whisper the Wolf's design began with an in-game custom character in Sonic Forces. From there, she would gradually evolve into her final look.
Tails is very discontent with the fact that Eggman has settled on making Tails Doll rather than a Metal Tails. Moreover, this suggests that he finds Metal Sonic and Knuckles to be particularly cool.
When robots or lackeys fail, Eggman uses his built-in command grab
In 2015, it was revealed that Ian Flynn, Tracey Yardley!, and Ben Bates of Archie Sonic the Hedgehog fame had pitched a line of Super Mario comics to Nintendo. It was ultimately rejected. Allegedly, Mario was also intended to cross over with Sonic and Mega Man in comic form.
Knuckles the Echidna's father dies of pancreatic cancer in the Archie Comics.