Thanks for your feedback. Yeah I think that is one of the first things to do for the post-jam-version. There is an annoying sound that plays when an object gets turned into a ghost but that sound is so annoying that I turned the volume way down and since a rising ghost isn't a threat till way later and you can't usually see it rise it's not really useful anyway. I thought about making the level way darker and putting a smoke fountain with light pointing up at the position where the ghost is going ro rise since I did something like that in a previous game but that was 2D and I didn't think I could do that in 3D within the time I had left :)
Thanks again - glad you liked my game :)