A headcanon i have that i honestly dont think about much is that 2012 raph wasnt as hotheaded as he is when he was younger .
This is mostly based off of myself in 5th , 7th and 8th grade . I wasnt always quick to anger until i got stuck with groups that i despised ! (Yes, im being bitter )
So the headcanon is that raph wasnt hotheaded aswell. Until his brothers started to go from wholesome to annoying or frustrating.
Leo started to take his training seriously and only ever was childlike while watching spaceheroes .
Donnie started going from “smart so i need to team up with him in a video game so we can win “ to “analytical ,fussy genius that flips the moment you breath loud around his projects”
And mikey …well raph got more and more frustrated the more mikey’s antics went from fun to borderline annoying .
Growing up with that has made his temper shorter and shorter . Making him the “hotheaded “ turtle we see in the present