Hi! I made a transparent and Pico-8 version of this pack and wanted to share! :D I'm not sure if I did the walls right, though. The background color was used in some of the sprites, so I had to guess what was supposed to be that color and what was supposed to be transparent. I hope I did okay! :)
Transparent background:
Pico-8 version (default & secret palettes):
Thanks for a wonderful asset pack!!! :D