I seriously can't even get past the intro with the bugs.
EDIT: Managed to get past it. You need to press the jump and attack button on top of them.
EDIT 2: You just need to press the jump button on top of them.
I think there needs to at least be an in game tutorial showing how to this, as it's not obvious the first time.
Also, so far it's great! The audio is a bit weird with how quiet some voices are, the music could use some work but it's a good demo. Apart from the flying bug platforms, those need a small tutorial on how they work.