I'm happy to introduce the first iteration of "meta-collectibles", which allow you to unlock collectibles that operate at the meta-level, affecting every tour you play.
Having a hard time beating a specific boss? Keep earning Mojo by beating easier bosses, then spend it to unlock meta-collectibles to give you a permanent advantage.
Meta-collectibles will be continually improved and balanced throughout Early Access. I'd love to hear your ideas for some meta-collectibles.