I thought the idea of this game was so original and fabulous! I had to restart once I realized I needed to bind the keys every time and not just the new ones and then got a couple levels in once I realized the strategy was to not bind every key every time! What a cool idea to have the player figure that out for themselves. I couldn't get to an ending though, even when I ran out of keys and couldn't finish a level? Not sure if that was a bug or if there is only a win-condition ending.
I would love to do some voice acting for you if you want to continue working on this game or any future game jams you work on! I think it could give the story a lot of spark!