Fun game! had some troubles with the wall jumping but that was just a skill issue tbh (kept swapping the arrows too early). I saw there was other jumping issues that could be solved with something called a input queue, hope the tip helps!
Hey! Thanks for the feedback, yes I have a input queue for jumps where you can pre-hold, so as long as the button is pressed when landing you will instantly jump. For wall jumps I have not implemented it yet, have to figure out a way since to stick to the wall you have to hold that arrow, so the game can detect you are against the wall, and want to stick to it, and not just sliding down.
I have a few ideas of how to implement it, will be something in a future version where I will give a few frames of early press to at least enter wall jump mode (though probably not the slow down).