Hey! I enjoyed this game, the 3D rendered main character is a very nice and subtle touch in the otherwise pixelarted world. I think I would have enjoyed it more without the pressure aspect to it, like Etrian Odyssey, where you can chart out the entire level your own way, and getting rated at the end for completeness would have been more fun for me personally. A casual mode like that seems feasible, since you have all those mechanics in place?
I wonder, should I grind a dungeon and see whether the small keys does something?