This is a very fun game, and I'm excited to see what's in store.
I'm not sure if anyone else has noticed this, but there's a bit of an exploit you can do. If you hold down X (or whatever button you use to throw the head), you can throw the head on the same frame (I assume; I don't have TAS tools) you pick it up.
In the demo, this only helps out with one screen. You can see what I did below at 1:35.
頑張って！