Hey thanks for the feedback and I'm glad you enjoyed it. I am aware the spike fall is rather difficult so I've been working on how to fix that, I may have a solution so keep an eye out for an update.
I am interested in what you mean by the general walking feels off. is that because of the air control right now or the actual walking? Perhaps the camera makes it feel odd or the speed.
I also like that idea about limiting the wall jumping. I had kept the vertical jump as just a faster way to go up walls but do think it may be more fun without. Particles are also something on my list to add so more polish will come as I update the game.