Very interesting concept! ✨
I see potential with this idea, I think I've seen a few games about it already, might want to look into that for inspirations (example: Toodee and Topdee), I also notice a smearing issue with the character's sprite, you can fix that by going to Project > Project Settings > General > Physics> Common > Physics Interpoation (if you don't see it turn on advance settings) enable this setting on your project and it shold fixt that smearing issue!