Thanks for playing it Joshua!
I deeply appreciate all your comments and feedbacks. Most of the things were definitely misses from us being a first-time game designers/developers, e.g. the z/x keys vs x/c keys combination, I was totally unaware! The full screen issue was something we also didn't think of, I'm sorry that this troubled your gameplay and I'm definitely including this as a improving.
We had lots of issues with hitbox, again, issues with not having experience on setting up a good hitbox. We're already iterating on this and trying different sizes with local gameplays.
I had a good time watching you play and reacting to things like: "You die if you go through the ceiling".
We hope to see you playing again when this game is more polished.