Pupula Duplex

5.100.379

Treasure Room Treasure Room

(page 4, column 14, row 1)(page 4, column 14, row 1)

Pupula Duplex is a passive item added in The Binding of Isaac: Afterbirth expansion.

Effects

• Widens Isaac's tears into a crescent shape, increasing their hitbox.
  • In cases where the Pupula Duplex visual effect is overridden, the tears just become larger.
• Grants spectral tears.

Synergies

• Godhead: The damaging aura benefits from the increased size significantly.

Interactions

• Brimstone: No effect on Brimstone.
• The Ludovico Technique: Only tear appearance changes, no tear size up.
• Mom's Knife: No effect on Mom's Knife.
• Tech X: No effect on Tech X.
• Technology: No effect on Technology or its variants.

Trivia

• "Pupula Duplex" is said to be a condition in which a person has two irises and two pupils in one eye, without any actual recorded cases. An actual rare medical condition similar to it exists, called polycoria.
• This item's icon is similar to Diplopia.

Seeds

 PC  HN4T QMN7 (First floor treasure room)

 PC  HLTD B7WD (Treasure room adjacent to spawn)

 PC  XVA6 BQFC (First floor treasure room)

 Switch  C6VD 4WXP (First Golden Treasure Room)