I enjoyed it quite a bit!
I found that when I tried to move quickly that the limit on jumps was a bit frustrating - it feels like the game really has a pace that it wants you to play at - but I'm not sure how much I vibed with that pace. Also, the replenishing HP with a large pool was interesting, but I found that it was tempting to optimize fun out of play by stopping, waiting for HP, then going (on first play-through, I thought the 2nd checkpoint flag could only be reached by sequential high speed jumps so spent some time trying to line that up with not dying). Overall, it felt like the design really encouraged the player to slow down when they weren't in 'encounters'.
I liked your in-game tutorial displays and thought the presentation was great. Very well executed.