This is an interesting little game. I don't really want to spoil anything because it works best with normal player expectations.
Some puzzles revolve around figuring out what you're supposed to do, but the game gives you ample hints. There is a cheap shot early on which I think serves as a tutorial for the saving mechanic. There were two times the game managed to hit the theme perfectly by making me scared of it's supposed complexity, but I found out after going back to my save files that it's just a trick and the game is less vast than you might think going from your initial run. The style is really cute, the puzzles are well crafted without being impossibly difficult. The lighthearted tone makes things feel less scary but more surreal and uneasy in a Kafkaesque sort of way.