I managed to get 27/27 after 3 attempts.
I rather enjoyed collecting the conga line of followers, although they didn't seem to do anything.
The game could use a bit more to do--perhaps collectibles to pick up.
Also, at this level of detail there's no reason the game can't be more zoomed out so you can see a bit more of the dungeon. If necessary, new rooms can be artificially "darkened" until they have been explored.
I wasn't getting any music or sound--if you implemented audio, it wasn't playing for me.