My personal Sonic the Hedgehog Headcanons!
feel free to add your own!
Sonic
Sonic doesn't have an actual house, he simply sleeps wherever is most comfortable. He does, however, have his own corner in Tail's Workshop with a hammoc and other stuff he's found in his adventures
Sonic is forbidden from ever drinking coffee
Sonic often visits Soleanna, but isn't sure why
He & Big have a yearly fishing trip
Both him and Shadow would love deadpool, but for extremely different reasons
Sonic & Mighty see eachother as bestfriends after Tails and Ray respectively. Unfortunately, they're both horrible at coordinating get-togethers
While Shadow may be stronger than Sonic, Sonic is far more creative with his powers, as Shadow is over-reliant on his powers. This leads to Sonic being able to tie and even beat Shadow sometimes
Tails
Tails has a house in West-side island, which is currently being used as a storage depot
He is seen as a local hero there, and is embarrassed to go there on his own
He is the group's tech support fox, helping whenever someone has issues with machines or technology (more specifically, Knuckles)
Knuckles
Knuckles quit the Chaotix somewhen before the events of Sonic Heroes. Nowadays, he, Shadow and Omega are unofficial members of the agency. Their team is called "Team Knuckles" after he won an arm-wrestling competition against Shadow and Omega combined
Knuckles refuses to use technology most of the time, but he does have a shatter-resistant phone made by Tails that is charged with the Master Emerald
He once accidentally shattered the master emerald because he was bored, it became a whole thing.
Amy
Amy wears weighted rings for training and to stabilise herself when using a hammer, Sonic and Tails are scared of what she could do if she ever removed them, since she can already double jump.
When she was younger, Amy considered herself a practicing witch and even had voodoo dolls of everyone. She made sure to properly dispose of (most) them
Unrelated, but Eggman has constant back pains that can only be described as "if a giant book was constantly pressing against him"
Amy has self-made plushies of every single one of her friends, it's the first thing she does when she meets someone new
Shadow
Shadow is technically faster than Sonic, but he can't maintain those speeds due to his inhibitor rings, so his air shoes help him reach high speeds without risking his stamina.
Shadow hasn't actually killed any human/mobian/earthling, even before he remembered Maria's promise or regained his memories. Whenever he was about to, a mental block prevented him from following through with it.
He is extremely competitive with tabletop games, Team Dark game nights have been postponed until he learns to "chill out"
Rouge once took him out drinking, she decided to not do it again because Shadow is a sobby drunk
On that note, Shadow is, weirdly enough, a total lightweight
Shadow has a secret stash of pop music dvds and other similar types of music. Only Rouge and Amy know where it is. Rouge because she's a treasure hunter and Amy is his supplier.
Shadow is often invited to girls' nights with Amy, Rouge and Cream at Vanilla's house (Blaze is also invited whenever she's around). He usually refuses but has gone once or twice because it reminds him of spending time with Maria. He's been made to wear makeup every single time.
Eggman
While Eggman does have the tech to give Metal a fully organic body, he secretly has hopes that one day metal will realise he's his own person
Ever since Sage, he's seen both her and metal as his children
The first time Eggman ever cried is when Sage and Metal gave him an incredibly botches Father's day present.
After Sonic Adventure, Sonic and Tails went on a full on propaganda campaign to make sure Robotnik was known as Eggman globally. He decided to just roll with it because it was free publicity
Bonus: Surge!
She eats cables and batteries, it's a genuine issue
