Honestly, there are a LOT of fun ways to go around a Freddy moveset: general horror-themed moves, a mostly original moveset based on the concept of being a toothy robot, focusing on grizzly bear brutality with slashes and bites, taking cues from the FNaF lore & backstory, trying to adapt FNaF gameplay, making a moveset for Freddy the kids' mascot instead of the evil robot... all of those concepts could easily make fun movesets of their own without taking at all from any of the others (not that they're mutually exclusive)