Thanks for adding WASD support! I was able to give it a try. I'm not sure why, but I couldn't really get the hang of it. I felt like I could only double jump if I stayed still or did nothing else but press W twice? If I moved at all, I lost my ability to double jump. If I was already double jumping, then I was okay to move left or right. I'm not sure if that was intended but it made it really frustrating.
Aside from that, I could see myself really enjoying this game.