Oml a low res mini-gold metroidvania, I think I'm in love, looks like I did in 67 strokes XD
I did find I got better quickly once I started to learn the strength and trajectory of various pitch and strength settings. The visuals were good I think, they fit well into the theme and I could figure out what was going on for the most part (With the exception of the sand tunnel in the roof, that could use some tweaking). The bgm was very quiet, but otherwise unobtrusive and I think fits the type of game well (From what I could hear) but it needs to be louder. The swing/hit sound was satisfying.
Most of all though it's just a really mechanically fun game, well done!
Edit: I did paste my end screen in here, but I can't see it on the page.
Oh one other thing I wanted to comment on was your thumbnail, it's really good. It drew me straight into your submission page when I saw it in passing. It explains the concept well at a glance. Made me realize my one was terrible haha.