Guppy's Eye

Item Icon
Pickup Quote	"An eye for secrets"
Entity ID	5.100.665
Character Appearance
Item Pool	Curse Room Devil Room Red Chest Curse Room Devil Room
Quality	2
Item Tags
Collection Grid	(page 6, column 14, row 3)
Unlock Method	Defeat Mother as Cain

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

Effects

• Shows the contents of Chests, Fire Places, Grab Bags, and Shopkeepers before they're opened/destroyed.
• This item belongs to the Guppy set. Collecting three items from this set will transform Isaac into Guppy.

Notes

• 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 Grab Bags 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 unchanged drops can still be obtained by:
  • Opening them with Flat File or Magneto.
  • Using swing attacks (such as The Forgotten, Notched Axe, Spirit Sword, etc.)
• This effect works on all non-ending chests, including Mom's Chest.
• This item is substantially less useful in Greed Mode, due to the scarcity of chests.
• The contents of Sacks or Chests that haven't spawned yet will still be revealed (for example, in rooms that spawn such Chests or Sacks when Isaac pressed a hidden switch, etc.).

Interactions

• Guppy's Eye: Picking up a second copy of the item gives Isaac a unique costume with both eyes replaced. This is purely cosmetic, and it will otherwise have no effect.

Trivia

• Guppy's Eye is one of the few items that will give Isaac a unique costume when two copies are acquired, along with Brimstone and Glass Eye.
• This item was suggested on a Reddit post on the Binding of Isaac Subreddit.
• This item originates from the card game The Binding of Isaac: Four Souls. In it, Guppy's Eye forces all other players to play with their hands face-up on the table.
• Its pickup text is possibly a reference to the description of the Rasmus mask from Hotline Miami.

References

The Binding of Isaac: Rebirth
Achievements Challenges Completion Marks Items Trinkets Characters Chapters Rooms Transformations Attributes Bosses Monsters Pickups Modes Curses Objects Seeds Effects Endings
Collection Item Pools Version History Modding Music