The driving rhythm and playful harmonies would probably make this feel quite celebratory to me if this were in a major key. In the minor key I'd need some story or context to convince my ears to hear it that way.
I like ObfuscatedOwl's idea of it being for a ghost festival. It's definitely not giving a straightforward normal joyous vibe, but some sort of alt-joy for the people who don't fit in at the happy cozy festivals with all the normal citizens. Like, while the living celebrate with gentle happy music and sunshine and smiles, the underground scene for ghosts, phantoms, and skeletons is all dancing raucously in the dark, having an even better time, in defiance of the living. When I listen to it with that story in mind, it works really well for me.