well, uh...
MINOR glitches? No, I'm sorry, but when the ARROW keys are not responding, I would call that major glitches. Good attempt, though. I had Pac-Man for the Apple IIe back in the day. And had the first color monitor available at the time, so that was even better. But even back then the game ran smoother than this. Fix the glitches, and resubmit.