This game has a great mood, and visually it all connects together. The dialogue is great, and the light-hearted story about recovering a toothbrush amidst a nuclear wasteland is hilarious.
Regarding feedback, I found little reason to fight enemies until the last boss. After a few tries, I ended up avoiding them completely and just dashing across the whole game until I got to the boss. Also, when you die, it'd be cool if something changed.
The boss fight was straightforward but engaging, took me a couple tries because I was getting there low on life, but all in all it was satisfying. Playing the game was a lot of fun, great work! I remember seeing your progress on discord!