I love your reload mechanic! It took me a second try just cause I wasted my first ghost but I like how you incorporated the theme and limitation together so well.
Besides the dash criticism others have suggested, I think I'd personally like it if the reloading didn't require you to stand still. Like how you can move and vacuum simultaneously in Luigi's Mansion. I just think that would make movement flow more smoothly.
Overall I think this is a unique and fun submission!