The ghosts having a resemblance to the ones from Pac-Man may have been subconscious haha. But I'm glad you enjoyed it!
About the issues, yes people talked about having trouble figuring out where to go or what to do at times and if I had just a little more time I would have added objective hints and streamlined the overall quest mechanic. The moments about not being able to move unless you were in ghost mode is peculiar to me; I never ran into that problem.
Regardless, I'm glad you liked the overall product and I hope I can make it better in the future :)