Pin

Base HP	Stage HP
100	0

Ingame Appearance

Entity ID
62.0

Found In
Boss


Double Trouble

(with another Pin, Mega Fatty, Larry Jr., Chub or Blighted Ovum)
Degraded Boss

Dropped Items
Boss

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 Cellar.

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.
  • Occasionally fires 4 projectiles diagonally from the last section of its body when exiting the ground and/or when burrowing back into the ground.
• Partially emerges out of the ground to fire a red Ipecac shot at Isaac before returning underground.
  • After performing this attack, Pin will always jump out of the same spot it entered.

Champion Versions

• Black: Slightly larger and fires a radial burst of 6 spiraling projectiles instead of an explosive projectile and fires 6 projectiles instead of 4 when moving around.

Gallery

• 

  Pin's appearance prior to Repentance.

• 

  Pin as one of Delirium's forms prior to Repentance.

• 

  Concept art of a scrapped boss named "Pin, Trio," along with Mega Maw and what appears to be The Gate.

Notes

• Each segment of Pin can be individually damaged, so a single piercing tear could hit Pin multiple times.
  • 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.

Trivia

• Pin was added in the Wrath of the Lamb DLC for the original The Binding of Isaac.
• The Frail is its posthumous version.
• It is the boss version of a Needle.
• Prior to Repentance, Pin's champion could never appear in-game despite existing in the original 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 attacks are the same.

Bugs

Bug!	If you fire immediately upon entering the Boss Room, rarely, you can damage Pin before it emerges.

Bug!	If Pin is under the effects of Broken Modem in mid-air, its jump will be stopped and it will fall.