Leo and Mikey have the easiest time regressing on purpose, while Donnie and Raph struggle more
seen from Germany

seen from United States
seen from Germany

seen from Germany
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seen from France
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seen from United States
seen from United States
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seen from United States
seen from United States
seen from United States

seen from Germany

seen from United States
seen from United States
seen from United States
seen from United States
Leo and Mikey have the easiest time regressing on purpose, while Donnie and Raph struggle more
When Donnie realized that soft shell turtles are one the endangered list, he called Draxum to diss him for “using an endangered species of turtle, you idiot” and promptly hanging up with no other context.
He then proceeded to hack into sites to advertise good ‘save the turtles’ campaigns and places that actually help. It’s now a weekly routine to check on rates for turtle species’ and the things trying to help them.
Donnie goes non-verbal when little
The first time they realized Raph was allergic to peanuts, Splinter stole multiple epipens
Eventually when Donnie could figure out how to decipher ingredients crazy well with his tech, he started to make them hisself
Occasionally one of the siblings will snatch one for Donnie to look at, so they can see if any changes were made, but not very often
When Donnie regresses, he wears his old, big, rectangle glasses
Donnie loves watching Atomic Blast (his cannon childhood idol) when regressed
Raph and Leo curled the ribbons of their masks before, and giggled the entire time
The fact that it worked, and the way the curls bounced made them loose it every time they looked at each others masks
Mikey and Donnie were totally not jealous. Nope. Not at all. (<- lying. They totally were.)
They’re all perfectionists
Every single one of them