Binding of Isaac: Rebirth Wiki

Questionmarkisaac For the item with a similar name, see Safety Pin. For the trinket with a similar name, see Push Pin.

Pin is a boss that can appear in the CellarCellar.

Behavior[ | ]

Pin burrows into the ground before performing the following attacks:

  • Jumps out of the ground towards Isaac and burrowing back into the ground at the end of the jump.
    • (except in Repentance) Occasionally fires 4 projectiles diagonally from the last section of its body when exiting the ground and/or when burrowing back into the ground.
    • (in Repentance) Fires 4 projectiles diagonally depending on the length of its jump: does not fire projectiles on short jumps, fires projectiles shortly upon exiting the jump on regular/medium jumps, and fires projectiles both shortly upon exiting and after a few moments airborne on long jumps.
  • Partially emerges out of the ground to fire a red Collectible Ipecac iconIpecac shot at Isaac before returning underground.
    • After performing this attack, Pin will always jump out of the same spot it entered.

Champion Versions Needs to be unlocked[ | ]

(in Repentance) Grey: 15% larger with 25% more HP. Fires a radial burst of 6 spiraling projectiles instead of an explosive projectile and fires 6 projectiles instead of 4 when jumping.

Gallery[ | ]

Notes[ | ]

  • Each segment of Pin can be individually damaged, so a single piercing tear could hit Pin multiple times.
    • Moreover, if Pin is petrified (due to Collectible Mom's Contacts iconMom's Contacts or (except in Rebirth)Collectible Charged Baby iconCharged Baby, e.t.c), his individual segments can even be destroyed (though that would not necessarily deal higher damage), which will shorten the boss in its length.
      Shorter Pin

      Pin with several of his segments destroyed, appearing much shorter

    • (in Repentance) Piercing shots no longer damage segmented enemies multiple times per attack.
  • Despite looking like it's flying above the ground, Pin is not immune to ground-based effects such as creep when doing its jumping attack. On the contrary, every segment is guaranteed to pass over the damaging area, making it more susceptible to damage.
    • Due to this, Pin also cannot jump across gaps, and will bounce backwards when attempting to cross one.
  • The segment that shoots bullets during mid-jump will continue to do so if it's suspended in mid-air with something like (in Repentance)Collectible Anima Sola iconAnima Sola.

Trivia[ | ]

  • Pin was added in the Wrath of the Lamb DLC for the original The Binding of Isaac.
  • (except in Rebirth) Boss The Frail ingameThe Frail is its posthumous version.
  • (except in Repentance) Prior to Repentance, Pin's Champion version could never appear in-game despite existing in the original The Binding of Isaac.
  • Pin is based off the pinworm, an internal parasite.
  • Pin is likely a reference to Lanmola, a boss from The Legend of Zelda: A Link to the Past, as nearly all of their attacks are the same.
  • It is the boss version of the (in Repentance) NeedleNeedles.
  • Pin is the only boss that got a new champion variant in Repentance.

Bugs[ | ]

Bug Bug! If you fire immediately upon entering the Boss Room, rarely, you can damage Pin before it emerges.
Bug Bug! (in Afterbirth † and Repentance) If Pin is under the effects of Collectible Broken Modem iconBroken Modem in mid-air, its jump will be stopped and it will fall.