watch 02:27 The Loop (Games) Do you like this video? Nova is a gameplay mechanic in Kingdom Hearts Union χ. Expansion requiredThis article is too short to provide more than rudimentary information about the subject. You can help the Kingdom Hearts Wiki by expanding it. Retrieved from "https://kingdomhearts.fandom.com/wiki/Nova?oldid=784234" Categories: Article stubs Kingdom Hearts Union χ Community content is available under CC-BY-SA unless otherwise noted.