[Kurona]

... y'know, come to think of it, Tamashii 2022's demonstration of the form change gimmick only actually showed Geats using it, huh?

Based on that and Buffa's accessories, I think we can assume going forward that this gimmick will be tailored only for Geats himself to access different forms, with everyone else only getting specific parts for their Entry forms. At the very least there seems to be no reason other Riders can't use alternate legs, but right now that just seems to mean Boost.