I definitely took some time enjoying the gorgeous art, I always have been more of a 3D enjoyer but recently I have started to respect how much artists put into their work so a job well done in that aspect. I huge W for how cute the fox is as well.
As for the gameplay, I enjoyed hitting the nails much more than expected as I retried each stage more than twice albeit I did turn off my music not because of the quality just something personal where I avoid listening to them and I found it enjoyable. I also went into the rabbit hole on how the "hitting the nail mechanic" actually worked so I think the main mechanic heavily caught my interest and I assume that is the point (of course I do not mean to tell us how it works as that is the dev's card and I was just mentioning my view lol).
I however seemed to return to the world after finishing all hits and nothing was happening so am I doing something wrong, I would love to know if that is what was intended for this beautifully put demo.
For enhancements, especially as the team continues evolving, maybe having an easy/hard mode could work especially tightening the timing where I could hit the nail, maybe in easy more nails that account for more hits could be there as a forgiving factor as well. Maybe the map could get expanded for more parts that repair the ship and thus moving to different level/map/planet and such. You could also include fights against bosses that have the most important part where hard rhythms effect the bosses's health.
Something I have been exploring, that is the parallax effect could also make the 2D map much more stunning.
Overall, I enjoyed the experience. I huge thanks to the team and looking forward to the enhancments.