The Frail

Base HP	Stage HP
300	0

Ingame Appearance

Entity ID
62.2

Found In
Boss

Dropped Items
Boss

Unlock Method
Defeat ??? as 3 different characters

The Frail is a boss added in The Binding of Isaac: Afterbirth that can appear:

• In all environments of Chapter 2 ( The Caves, The Catacombs, Flooded Caves).
• Only in The Catacombs and the Flooded Caves.

Behavior

Phase 1

The Frail in its first phase has 100 HP like Pin and behaves identically; 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 doing this attack, The Frail will always jump out of the same spot it entered.

Phase 2

Upon its HP being depleted, The Frail's appearance becomes skeletal. It now has 200 HP and performs the following attacks:

• Jumps out of the ground towards Isaac, firing 4 diagonal projectiles from the last section of its body that each split into 4 more projectiles in either cardinal or diagonal directions. Burrows back into the ground at the end of the jump.
• Partially emerges head-first and:
  • Fires a Brimstone laser at Isaac rotating to follow his movements.
  • Fires a quick, non-moving Brimstone laser at Isaac 2 times before stopping.
  • After performing any of these attacks, The Frail will always jump out of the same spot it entered.
• Partially emerges tail-first and fires a burst of white projectiles in all directions which leave small puddles of slowing White Creep where they land.
  • After performing this attack, The Frail will always jump out of the same spot it entered.

Champion Versions

• Black: Starts in its second phase, with only 66.6% HP (200) total.

Gallery

• 

  The Frail in-game.

• 

  The Frail in its second phase.

• 

  The Frail's tail in its second phase before Repentance.

• 

  The Black Champion Frail before Repentance.

• 

  The Black Champion Frail's tail before Repentance.

• 

  The Frail as one of Delirium's forms.

Trivia

• It is the posthumous version of Pin.
• Despite The Frail being an invertebrate, or an animal lacking a skeleton of bones, its second phase is skeletal.
• The definition of the word frail is weak and delicate, which explains its rotting body and depressed look in The Frail's first phase.
• The main body of The Frail's battle sprite is heavily based on Larry Jr.'s battle sprite.
• The Black Champion's behavior of starting from the second phase might be a bug since this version of the boss is set to have 30% more HP (260) in its first phase. Spawning the black champion via the Debug Console displays a glimpse of the boss in its first phase, before being instantly replaced with the second phase, ignoring the amount of HP set in the game files.
• The Frail can be found in The Void, even before being unlocked.
• It is the boss version of the Pasties.

Bugs

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