I'm confused. The main control scheme IS WASD. That's what i used for playtesting, and that is what i use to play it today. I don't think I even knew I could play with arrow keys. The rushed tutorial I put in the pirst level tells the player to move with WASD. Also, I used all of my 48h, Aug 15 to Aug 17. If, for some reason, you can only play with arrow keys, it might be bugged for you. A simple game screen restart should fix it.
Edit : I'm stupid. I just realized what that 48h comment meant. I think I have like 10h left. I'm going to work on it some more, but don't expect anything great, exempt for more levels, and better balance.