I'm really glad you managed to come back and experience the game in it's entirity!
We're very proud of the ending! The final descent was something we realised we needed far too late, so being able to actually implement that in time was a big feat for us. We're both so happy with how it turned out too, it's so cinematic and triumphant. We keep humming that melody over and over haha.
And I totally agree, displaying hints would be awesome if you're stuck for a while. Some actual explanation in game of the controls is also definitely something we need, such as a little tutorial sequence in the first layer.
Thanks so much for your heartfelt comments and feedback! It means a lot to us.