Thank you for your kind comment.
Toogle Fullscreen -> O-key (oh)
walljumping is actually pretty easy, if you know how. The tutorial sucks, i know :x
Jump against the wall, and HOLD the direction key, then press the other key (the direction, in that you want to jump). HOLD that key too.
AFTER the jump, release the "old"-direction key, and use it to jump, when you reached the wall on the other side. You can see, if a walljump is possible, when the character is spawning grey praticles on the wall.
I learned ALOT in this first GameJam... For example: including the key-mapping in the game... or making better tutorials.
Maybe the controls felt easy for me, because i haven't done anything else a whole week, so i though it would be easy and understandable... sorry for that.