It's a really nice Idea, the Music is goo, and the graphics are fantastic for 3days.
The only negative Point I have: You should disable the collision between the Player and the ghosts. (in unity - Edit>Project Settings>Physics2D>LayerCollisionMatrix)
Idk if this is an intended game design decision, but I got stuck on walls multiple times, because all the ghosts surrounded me and I could not move anymore. In the end, I actively tried to get some Ghosts stuck behind a wall, so that I can move properly.
If this is intended, thats completely Ok too imo, it certainly is an interesting new kind of gameplay, but then at least give the player the ability to restart the level when they are stuck. Just place a retry button on the bottom of the screen and everything is fine
Anyways, I still really enjoyed it! good work ;)