ahh.. the wall jumping is indeed working however i now have heard that its just extremely difficult to do.. the problem is that i guess the timing is too precise and thats why ppl have problems to go through? it is possible as i did pass the game but i guess it doesnt count since i made the game and exactly how the game works.
maybe try again if you still want to the game has lot to offer after that part. and like you have to press the arrow key away from the wall (not up/jump key) to walljump. i tried to add info about this on the game info page. im going to make an update in the future and obviously make it easier to work.
thank you so much for your input!