I found this game after playing the HPS1 2021 and streamed it a few weeks ago and had a blast! The game feels so good to play! Like others have mentioned, I had a few challenges with figuring out the jump bounce but it seems like a good tutorial npc or something could easily fix down the road. The level design is awesome, and the attention to detail in the animations and effects is completely on-point down to the little bouncing numbers.
If I had to give some constructive criticism, I'd say that the npc dialogue feels a little obligatory right now, like there's one npc at the start of each world that essentially says "help us" and sends you on your way, when they could either have a bit more personality or variety, even if their function is the same. Having some fun voice acting like the dragons in Spyro would be charming too. But I assume most of that is stuff that will be refined in later builds since this demo seems to be focused on the already incredible mechanics.
Can't wait to play more of it!