Progress bar and secret room

[noahap]

What does the progress bar in the bottom right of the screen do? How do I get into a room that is shown disconnected from any of the others on the map?

[SkyCake]

The bar represents your Violence (red) and Wisdom (purple). Violence is filled by taking damage and spending health. Wisdom is filled by not taking damage and spending crystals. Crystals chests, doors, and the big crystals can be shot (by you or the enemy) to turn them red where they cost health to use, filling your Violence meter.

Once full, you can teleport to the Devil Room (red) or Angel Room (purple). In the Devil Room, you spend one heart container to get a choice of three items. Angel Rooms give a choice of two items but don't require to sacrifice a heart container. Can only pick one in either room. In my experience, Devil Rooms tend to offer more offensive based items while Angel Rooms offer more utility based items. I personally find the Angel Room better because they've given me flying a couple of times and I value that over damage. You may feel differently!

Edit: To make sure it doesn't seem like I'm trying to say that Angel/Wisdom rooms are the best. I have also gotten garbage/situational from them such as Magic Wand (chance to drop crystal when you get hit). The Devil/Violence room gives more options and that on its own is worth something. Similar to Isaac, I would suggest Devil Rooms are more consistent even at the cost.

[76561198995444303]

Just to be clear, you need to use one of the fast travel teleporters and select the rooms. SkyCake has gotten it though!

Also violence rooms have 3 items vs 2 in the wisdom rooms so even more base choice! :)

There's also a fun mechanic with wisdom/violence in the late game but we'd like to leave people to discover it!

[noahap]

Thank you!