I feel like there was a lot to like about this game - but the health/save/respawn system dealt the overall experience a major blow. Getting past a boss and onto a new world, only to die and go back to half way through the previous world was very frustrating for me. Going back and having only one bar of health got annoying quickly. Also, the style of the mountains level was a bit hard to look at.
On the plus side, the game controlled well, there was a variety of enemies and backgrounds, and I did get to complete the game eventually.
I did a video on the game, which has more "in the moment" thoughts, if anyone wants to watch: https://www.youtube.com/watch?v=byK-isDlmNA