Fred Super Suit is one of the secret characters that can be unlocked in the Big Hero 6 section of Disney Crossy Road! In order to unlock him, all you have to do is unlock the 'Suited Up' set of characters. These characters include Hiro Super Suit, Go Go Super Suit, Wasabi Super Suit, and Honey Lemon Super Suit. Once you unlock these characters (in no particular order) you will unlock Fred Super Suit!
If you know how to unlock any other Disney Crossy Road Secret Characters, make sure to tell us in the comments below!