Example: Sonic Underground has an episode where Manic gets repeatedly drugged by a robot in his fanny pack. The packs has a bunch of holes so big light passes through by the end, and I headcanon that the injection sites have left scars.

Anyone have similar instances for your muses?

Tobias has plenty of mental scars lol

Valid, mental scars all over the place on that boy.

A few pock-marked scars for Alivian from having rocks thrown at him after the accident that caused a lot of trauma for everyone.

T~T

Mike and Rainbow are clear.

We've seen Mike hurt before and Rainbow doesn't really deal with dangerous situations that'll give her scars

Makes sense. Some characters just don't have to deal with that.