I stumbled across this by accident, but I'm glad I did!
It's a fun little game, that is like a 2D Fatal Frame with more of an action focus.
A few suggestions for a fully fleshed-out version: a minimap would help, especially with levels becoming larger, yet looking similar; crossing off items on the checklist so that you know what you have/haven't collected; more ghost variety; less upbeat music (it was spooky and fun, but I think the game would be more tense with spookier/darker music).
Overall, I enjoyed this. I hope you return to this game one day. :-)