This is insanely good, especially the percussion. This feels almost too gripping for a kart game haha. The synths are an incredible part of the OST and have a very airy sound that fits beautifully with the sky theme, plus the e-piano (and other instruments I can’t identify) remind me of simpler times on the Wii; I can’t explain why that relates to the theme, it just does. Needless to say, incredible work to both of you.