The roguelike Act 1 is excellent - not as good as something like say, Slay the Spire, but the atmosphere and mystery more than makes up for any lack of gameplay depth. This is when the game is at its best for sure.

Act 2 is solid as well, giving the player much more freedom and creativity in the deck-building process. It loses some of the tension and build up from Act 1 though, due to lack of consequences from failure and the previous atmosphere being completely absent.

Act 3 is unfortunately not nearly as good as the first two, the gameplay quickly gets dull as your deck gets bloated and encounters are easy and relatively simple. P03 is not as interesting as Leshy as a protagonist. I did enjoy the outside puzzles of this act though, and the ending is a great cap to the entire experience.

I liked the story, though I can't help but find the meta stuff a little played out at this point between the designer's previous games, Undertale, One shot, Doki Doki Literature Club, etc.