I really like the humor of your game. It doesn't take itself too seriously and it's refreshing.
I loved the GB aesthetics, the character and monsters design. Your music and FX were great too.
I would personally desaturate the color of the grass a little, it's very intense! I also expected to walk behind the two block trees, it could be nice to reduce the size of the collider.
Also, I know it's a GB era inspired game, but saving anytime could be cool!
When I started your game at first, my first taught was "What's up with that font??", so I laughed when your messaged popped up telling me to install the missing font :D
One last thing, it's probably good for you to know about screen ratio support. My main monitor is ultrawide (32:9), it was really stretchy. I was able to play windowed, but I couldn't resize so it was quite small. I couldn't make it fullscreen on my secondary monitors either.
Thanks for the experience. I had a good time!