What are the special rooms?

Not 100% that this is the entire full list, but I've seen:

• Booyan the Clown: Challenges you to use either five axes or ten daggers to destroy a bunch of targets, gives a prize of a large chest if you do well, or else at least gold for every target hit.
• Shrine: Pray at it to receive an item.
• Paintings: Give details about previous games by the same developers. Sometimes, they turn out to be a Doomvas variant, and killing them creates a chest.
• New Spell: Swap out your current spell for the new one sitting on a pedestal.
• Jukebox: Lets you play any song in the game, but only while in that room.
• Fountain: Restores a chunk of HP and MP.
• Gambling Elf: You can pay him 25% of the money you have, in order to open one of the three chests behind him. Two are empty, one contains 3x what you paid.
• Diary rooms: Read the diary to unlock another entry and learn a little bit more about what's going on.
• Red teleporters: Teleport you to a random room. Changes each time you use it.
• Miniboss: Kill a miniboss (sometimes one enemy, sometimes a pair of them), and they drop a large chest.