Perfect game jam game. Wonderful length, mini games were fun but didn't outstay their welcome, VFX looked great, audio was ideal. Honestly I think this game is brilliant. I'm really not sure what to say that's constructive. I think you scoped everything very well. Maybe build up the story before things get weird, or build up the crazy endgame monster?
Honestly I hope you either make the game bigger or create Steam games so I can go buy them.