First ending good and platforming/puzzles are fair, fun and present a reasonable challenge.
Music, art and atmosphere are excellent.

Other endings you won't get without looking for guides online which ruins the game for me and are impossible to solve on your own. You might solve a few, but then you'll get stuck indefinitely.

I would down vote the game, if I was just voting for the stuff past the first ending. Those esoteric puzzles are not fun.
That said I enjoyed the game up to the first ending. 6-10 hours of fun were reasonable for the price.

First ending good and platforming/puzzles are fair, fun and present a reasonable challenge. Music, art and atmosphere are excellent. Other endings you won't get without looking for guides online which ruins the game for me and are impossible to solve on your own. You might solve a few, but then you'll get stuck indefinitely. I would down vote the game, if I was just voting for the stuff past the first ending. Those esoteric puzzles are not fun. That said I enjoyed the game up to the first ending. 6-10 hours of fun were reasonable for the price.