A Back Floor is a special location found on some dungeon floors in Dark Cloud. They contain powerful enemies and valuable loot. Back Floors can only be accessed by using a special item unique to each dungeon.
The dungeons and their corresponding items are as follows:
- Divine Beast Cave: Tram Oil
- Wise Owl Forest: Sun Dew
- Shipwreck: Flapping Fish
- Sun and Moon Temple: Secret Path Key
- Moon Sea: Bravery Launch
- Gallery of Time: Flapping Duster (Japanese version only*)
- The Flapping Duster can be obtained in the US version through a glitch.
- Demon Shaft: Crystal Eye
Monsters in Back Floors are stronger than those found on regular floors. These monsters are permanently under the same effects given by a stamina potion. In addition, monsters from later floors can also be found in these areas.
The treasure chests found here often contain rare and valuable items. Weapon attachments appear to be much more common here. Back Floors are also the only places that gems (diamond, ruby, etc.) can be found.