I think this game has potential, but it's incredibly hard to jump into. I like that the kill screen isn't a dumb jumpscare, but I'm on level one and I feel totally lost. I want to play to unlock the scenes, but with the obtuse controls, rapid draining sanity and lack of proper tutorial for those unfamiliar with these types of games, I don't see myself supporting the project anytime soon.
THe only thing you unlock is the gallery collecting it through levels as it spawns at random, you don't actually unlock the game over animations (for now, can't say if they will eventually)
What problems you have with the mechanics of the game? maybe I can help you understand better.
As for the gameplay outside of mechanics it is as all FNAF style games are, it is a matter of catching the flow of what you should be doing and of course having luck