This is a fun game, dragged into the mud by a lame cashgrab and a stupid 'energy' system. Just buy King's Bounty: Armored Princess instead! If you're going to give 1C money, you'll get more value out of it that way than wasting it on Kreds.
The AI needs some work. The ghosts seem to just wander aimlessly and even when it does seem like they're chasing you, they give up rather quickly. Maybe you should try mimicing the old Pac-Man AI and giving the ghosts each different personalities. I think one is supposed to run from you, another tries to trap you, etc.