I enjoyed the game! I was correct when I discovered the alternate endings, that you press the colored key, but I think it didn't register the first time because I wasn't able to let the cat go be with the owl. I was selfishly stuck in the maze, again, with the cat; but at least I had the company of a kitty.
The day and night cycling was really interesting, I was surprised how dark it got! When I went around the maze the second time, to get to the g ending, I was so fast!