Snake Pass: Are there any rewards for 100% completion?
Yes, achieving 100% completion appears to award you with alternate costumes for Noodle and Doodle. From this post on GameFaqs:
I just completed Snake Pass with all collectibles.
In case anyone was wondering what the 100% completion reward was...
It's new skins for Noodle and Doodle!Here's a picture I took too!
