Thanks for the comment and all the ideas :)
I don't know if I'm going to develop it too much further. I was tempted to add more to the overall design of the game but because it was my first time building in pico8 and I also didn't want to spend too much time on development I decided on the current leaner / more simple design. They are definitely all things I'll keep in mind of a future game as I really enjoyed making something of this style in pico8 so I reckon I'll do it again.