He has insomnia. He decided to spray paint to pass the time when you find him. You ran away from your abusive alcoholic parents and you can choose your age, name, and gender, but he’s a 16 year old (a year after the movie) so Leo and Donnie are 17 while Raph is 18. He’s really goofy, kind, emotional, and cares a lot about his brothers (Raph, the oldest, Leo and Donnie are twins) and friends.