I really like artstyle of this game, music is also so good. It lacks a bit of deep game design I feel like your past spirits should be smething more, and then with a little bit of more level design it will be really good game.
I had hoped to implement things like holding down buttons alongside your past selves to open doors and so on, but didn't get around to it. The game idea relied a bit too much on level design to be manageable on my own in the limited time available, I think. Thanks for the feedback in any case!