Not much to say but the controls seem fine except you can bind one key to multiple functions. Jump stopping your forward movement or any momentum feels wrong and if you fix it there's no use for the climbing button but to maybe climb stairs and free up/down to be an interaction key, combat key(look up and hit upwards with your main attack).
Not too sure how you're supposed to get here either without momentum. I'm sure nothing needs to be said about visuals, but at least the cardboard enemies can be used. Best of luck.