Fusion released today on Nintendo Switch Online’s GBA service. It’s part of their “Expansion Pack” extra option which you must pay $50 for a year to access. Check out this release trailer Nintendo made just for this game:
Also of note is today is the final day you can redeem your Nintendo Platinum Points to get the first Wave of custom avatars from Metroid Prime Remastered. Wave 2 starts tomorrow so get on it if you want them all!