He loves practical jokes. An elaborate plan to break the team out of prison includes a request, straight-faced, for an artificial leg that has no purpose beyond being funny. What commitment!
He’s deeply insecure. Is that a trait intrinsic to his Enneagram, or is it a product of the abuse he’s suffered as a lab experiment? He’s a Head Type; an ingenious wizard in the body of a raccoon. Anybody would feel less-than under those circumstances.
Five, Six, or Seven? Well, hilariously, I immediately discount him as a Five because he’s so short. It’s not his fault! He’s a small animal!
He’s so dour he must be a Six. A Six can be very glass-half-empty, and that’s Rocket. Disaster is always around the corner for him. His love of Groot — a Nine if ever there was one — is also very Six. A Six moves to Nine in strength, and what raccoon wouldn’t dream of being a powerful tree, lol? Their partnership, I would suggest, is based in this Enneagram relationship.
Rocket is the darkest version of a Six possible, which is rooted in his lab-animal history, but we still get his cutting humor, his crafty intelligence, and his tender heart. Well done.