I feel like some aspects of SSBU's DLC (namely Spirit Battles and Classic Mode routes) is too reliant on whether or not you have certain characters and/or Mii Costumes. For example, Sophia's Spirit Battle doesn't play Last Surprise nor does it take place on Mementos unless you specifically have Joker's Challenger Pack, and Banjo isn't a puppet fighter for Kuma at all despite them both being bears with a comedic focus.