Hey thanks so much for your detailed feedback.
Yeah I really tried to make this game stand out from your typical sokoban-style game, by having the enemies actually move based on how you move.
Thanks for your suggestion on the larger maps. As you've seen, the boss levels do give you a bigger map to traverse, but it's only every 20th level to give the player something to look forward to. But I'll think about that. Maybe every 5th level can be a medium-sized one. Who knows.
Glad you enjoyed the artwork. The backgrounds are currently placeholders. I've hired a pixel artist to redo them all for a more consistent style. You'll see them next month, when I update the demo again.
I'm so happy you noticed the music. It's what motivated me to get into game dev, as I needed a way to showcase my skills in a more meaningful way to those looking for music. I would love to work on a Final Fantasy type game some day.