I quickly dove into the game and then got lost as I couldn't exit and had to spam keyboard to see the controls. The menu refers to "Punch" but it wasn't obvious what key that is (and it wasn't "p"!).

I see that ENTER pauses, but may I suggest also making ESC and/or P pause. And then the pause screen showing or linking the keyboard controls and an exit path.

(Caveat: I'm not much of a gamer so maybe the current controls are standard? Anyway, I feel like it could be more inviting to casuals with something like the above.)