Binding of Isaac: Rebirth Wiki
Binding of Isaac: Rebirth Wiki

Added in Repentance

Guppy's Eye is a passive item added in The Binding of Isaac: Repentance.


  • Displays the contents of Chests, Sacks, and Fireplaces before they're opened via icons placed on top of them.
  • This item belongs to the Guppy set. Collecting three items from this set will transform Isaac into Guppy.


  • Guppy's Eye does not show the contents of tinted rocks, Poops, and other obstacles.
  • Guppy's Eye does display enemies that can be contained within chests.
  • Chests and Sacks can only display up to four pickups at a time. If there are more than four, higher-value pickups like Bombs, Keys, and Soul Hearts will have priority on the display.
  • If a red chest looks like it doesn't have anything in it, it will teleport Isaac to the floor's Devil Room/Angel Room.
  • Due to how Trinkets generate, if a chest displays a trinket, all future chests will also display/give that trinket until it spawns in some way, at which point all chests will display a new trinket.
  • Mimic Chests will change their contents whenever their spikes pop out. The only way to get the original drops is to open it with Flat File Flat File or 15►Magneto Magneto.
  • This effect works on all non-ending chests, including Mom's chest.

In-game Footage[]


  • This item was suggested on a Reddit post on the Binding of Isaac Subreddit.
  • Before it was added in The Binding of Isaac: Repentance, Guppy's Eye was an item in The Binding of Isaac: Four Souls, in which it forces all other players to play with their hands face-up on the table.


PC Hard mode only L4WH 88YF (Curse Room adjacent to spawn)


Bug Bug! If a Chest or Sack disappears due to 15►Options? Options? or the G0NE S00N seed, the preview of the Chest/Sack's contents will remain on screen where the chest was.
Bug Bug! Does not work in crawl spaces.

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