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The Secret Room (see also: Super Secret Room) typically contains no enemies and 3-9 Coins (usually pennies, with slight chances for nickels and dimes), a slot machine, or an item. The "sin" mini-boss Greed will sometimes appear in a secret room instead - The Compass will show if he resides there (this is very unlikely in the earlier levels, but increases in probability).

In the Secret Room, the track Respite plays in the background.

Secret room can contain:

3 random Coins
6 random Coins
9 random Coins
Slot Machine
Fortune Telling Machine
Greed or Super Greed

The room may also contain one of the following Items:

Some of these items are more common than others.

Locating the Secret RoomEdit

The room is normally unmarked on the map, although the Treasure Map will show it automatically. The player must bomb the wall of an adjacent room (in the middle, where a door would be) to gain access. X-Ray Vision will automatically reveal entrances, thus foregoing the need to bomb. When you have the Spelunker Hat, a chime will play when entering such a room, otherwise its location must be guessed. The Secret Room tends to border 3 or 4

The secrect room on the right filling the cross. An unusual placement.

Added by Powerplayerjoe

normal rooms, a good indication of where to try.

Entrances created to the Secret Room close upon leaving it. The player can bomb into other adjacent rooms from inside, but without X-Ray Vision will not be able to enter Boss or Challenge rooms in this manner. Just like any other mini-boss room, if Greed inhabits the secret room you will not be able to bomb your way out through any of the other walls.

Usually you can find secret rooms when you look at the map. If you see a pattern of rooms enclosing three out of four sides of a square, similar to a 'horseshoe', this usually indicates a secret room. There is a small chance where such pattern does not exist in normal rooms. In cases like these, the secret room borders two normal rooms.

Bug : If the secret room is next to the starting room. It will show a door and quickly change.

Click here for a video with a working example to explain how the secret room system works.