Nice little game 😀.
Gameplay
I died quickly in the beginning, but after a while I got further and further. I did dash through the obstacles (was this also the intention?).
A good addition would be to explain the controls in game. Had to look them up on the page. No problem but would have been a nice extra. On the wall or in a separate menu item for example. Or a little story about what is going on in the game and your purpose.
Graphics
Decent good probably homemade 2d art. The animation is maybe a bit stiff of the character but it fits the overall style of the game. Maybe an extra death effect would have been a cool bonus or some particle effects somewhere. And as a little tip. Replace the standard Unity .exe icon to give your game some extra uniqueness.
Audio
Nice soundtrack! Also read the extensive devlog about the music. Very insightful! Might have been nice if you had just a different variation in terms of music at each restart. Especially since so much time has been put into it. But the music was nice to the ears😀.
Theme
Can not really enhance in the game. That is a pity.
Devlog
Good that you added those and as a bonus even two logs. Especially the audio log was very nice and different from what you usually see and also very informative.
All in all a nice little game. Keep up that good work.