Is there a way to report bugs? I don't know how much development is going on, but presumably the third chapter is still in the works, so maybe? If someone could point me in the right direction, it would be appreciated. I will just note a few bugs below.

If you go to an angel/devil room and then return to the boss room, sometimes the boss music resumes.

On Glacier and Tomb levels, sometimes entering a room teleports you to a place in the room that does not correspond to where you entered. It seems to consistently happen for some given rooms. At least one time, this resulted in me being teleported to a ledge that I could not escape. Restarted changed my location in the room and allowed me to proceed.

I will note that summoning Delirium on bosses in Glacier and Tomb is not a good idea. Phase transitions tend not to happen if there are enemies left. This can also happen in regular rooms.