Thanks for playing, and congrats on fully beating the game! There are 8 cherries in the game, and the only hidden ones are in the second, and third room of the game, but they are pretty obvious. Actually, you might be the first person to collect them all, congratulations! About the ending, yeah, it's pretty dark, and what makes it even darker, we have designed it, so the cherry on top appears only if you have collected all of them, otherwise there meant to be none, but we didn't have time to do this, so it's always with a cherry. Thanks again for playing!