The bounce mechanic does take some getting used to, it doesn't really work how you'd expect it to in a platformer, once you get the hang of it though it's alright. It's fun to get a nice rhythm going. I noticed that the signs tell you that you can bounce using WASD/Arrow Keys but when I do that, the bounce doesn't properly preserve your momentum so you can't bounce any higher than the default bounce like you can with the Z key.