Fake Rock is a trinket in Fiend Folio, a mod for The Binding of Isaac.
When inside a room that has an adjacent locked door, the first rock bombed will drop a Key.
If more than one locked door is present, or the door requires multiple keys to open, bombing more rocks will drop the keys required to open the doors.
Even if a door requires a different pickup to open (e.g. Arcades require coins), rocks will still drop keys.
The following special synergies and interactions for Fake Rock have been documented.
Mod | Item | Synergy |
---|---|---|
--- | Trinket multipliers | No effect. |
* Note that not all possible synergies and interactions are listed here.