Really interesting concept. What do you have planned in the future? Multiple environments? Goals? Challenges?
Edit: I just played a bit of it, and the controls for movement feel a bit wonky. Instead of 'a' and 'd' being strafe keys, they turn the entire character. Perhaps there could be a different configuration? Without the ability to look down, it's tough to know when I'm close enough to pick up an apple. The inability to walk a different way than my character is facing also makes it tough to see how close enemies are.