I ended up calling it at this checkpoint, I dunno how close to the end I was but presumably fairly close? 
I like the lil guy and really wanted to get him to see his first sunset :( Definitely agree the controls are floaty and the momentum stuff is just too hard to manage like jumping back and forth between single blocks. I did notice there were some wild speeds you could get with crouching, dashing, and then jumping, but never felt like there was a place to use it. I think increasing the ambient lighting may have helped a little bit because it often was unclear where to go.
One other thing that felt unfair to the player is the hitbox of both the character and the coral. I think it’s pretty universal to always undersize your character and threats to them so the player can feel like a cool genius for barely missing an obstacle that got so close it almost hit them! A lot of deaths I felt like I was just sorta in the vicinity of coral and then died which wasn’t great.
I liked the song, but wished for sound effects dearly. I think there’s a lot of good stuff going on here, great work :)