Thanks for the detailed feedback! :)
I myself knew this is gonna be janky so I was worried it will be "too janky" to even enjoy. I really appreciate you found some fun - and especially fun exploration even though there wasn't as much as I wanted :D
I've started the project on 30th of May so I was a bit late unfortunately. Originally I wanted more optional areas and a boss fight giving you a key to get to The Tower and some other powerups, eg. grapling hook, laser projectile...
There were some things I've done the first time, eg. CSV for some data - Godot trolled me there with the CSV with some game export nightmare - or using Blender as level editor with lots of placeholders and stuff, then using a postimport script making an actual level from that automatically.
After realizing I didn't have much time to finish, I've tried to cut my plans in a way that I can still make a game that's playable from start to finish, this was the strongest priority.
This resulted in "some" jank and prototype feeling which I myself feared, since playing through the game I myself got some strong "yep...this is unfinished and rushed" feeling.