Tainted Forgotten

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Tainted   Forgotten
and Tainted Soul
Tainted Forgotten
Tainted Soul
No healthFull soul heartFull soul heartFull soul heart
Table dividing line 1.png
Damage Stat Icon.png Damage
3.5 (* 1.50)
Tears Stat Icon.png Tears
Shot Speed Stat Icon.png Shot Speed
Range Stat Icon.png Range
Speed Stat Icon.png Speed
Luck Stat Icon.png Luck
Table dividing line 2.png
Starting Items
Starting Item Icon.png PickupsNoneNone
Starting Item Icon.png ItemsNoneNone
Unlock Method
The Fettered Use the Red Key or Cracked Key in Home as The Forgotten The Forgotten
Added in Repentance

Tainted Forgotten is a character added in The Binding of Isaac: Repentance. He is the alternate version of The Forgotten The Forgotten. Tainted Forgotten is unlocked by reaching Home Home and using either the 15►Red Key Red Key or the Cracked Key Cracked Key to access a special room in one of the walls while playing as The Forgotten.

The character is split into two parts, both existing at the same time. Tainted Soul resembles The Soul The Soul and is directly controlled, but cannot attack in any form except through the skeletal Forgotten. Tainted Soul cannot obtain red heart containers; it can only obtain soul, black, or bone hearts. Tainted Forgotten is completely invulnerable, immobile and does not have a health bar. Colliding with Tainted Forgotten will cause Tainted Soul to hold it over its head, and pressing any of the fire buttons will throw the skeletal body in a given direction: Tainted Forgotten performs a bone swing attack while thrown for 3x damage, and deals an additional 5 points from body impact. While on the ground, Tainted Forgotten can continue swinging the bone or charge up for a bone throw attack in a similar manner to the ordinary Forgotten. Enemies almost always target Tainted Soul alone, but Tainted Forgotten's body can also be used to block enemy projectiles and movement.

Both Tainted Forgotten and Tainted Soul can pick up items and consumables, unlock doors and chests, and pay for items (both in shops and devil deals). However, Tainted Forgotten will only do this if it is thrown into the object it is interacting with. Tainted Forgotten is automatically held by Tainted Soul upon entering a room. Bombs placed and consumables and trinkets dropped will spawn on the location of Tainted Forgotten only. Tainted Forgotten can be thrown through doors to enter adjacent rooms, and being invulnerable, curse room doors can be passed through safely.

Familiars and orbitals will follow Tainted Forgotten, thus not granting any protection to Tainted Soul.

Strategy and Items[edit | edit source]

  • Invincibility effects like 15►Book of Shadows Book of Shadows, 15►My Little Unicorn My Little Unicorn or 15►The Gamekid The Gamekid show the effect on Tainted Forgotten, despite The Soul being immune to damage as well.
  • All contact damage attacks such as 15►Aries Aries and 15►The Virus The Virus are tripled in strength for throwing Tainted Forgotten. The damage is added on top of the normal 5 points its body impact does.
    • Conversely, Tainted Soul cannot deal any contact damage at all.
    • This makes15►Midas' Touch Midas' Touch very good, as the petrifying effect can be activated without cost and it can do up to 69.9 damage, or 609.9 with 15►Deep Pockets Deep Pockets .
  • 15►Pluto Pluto is a direct downgrade on Tainted Forgotten, as the large size down only affects the skeleton and not Tainted Soul. This makes its hitbox smaller and also harder to pick up.
  • Care should be taken when fighting enemies spawned in devil rooms with devil deals, because throwing the Tainted Forgotten into a devil deal will purchase it, with potentially fatal results.
  • Resurrecting from items such as 15►Lazarus' Rags Lazarus' Rags and 15►Ankh Ankh will cause the player to instantly die upon resurrection. However, 15►Guppy's Collar Guppy's Collar does not cause this to happen.
  • When 15►Gnawed Leaf Gnawed Leaf is available, The Soul will become invulnerable to every enemy attacks a few moments after throwing or holding The Forgotten. Paired with a damaging Orbital Familiar or contact damage, it is possible to beat the game without being hit once.
  • 15►E Coli E Coli is an excellent option for Tainted Forgotten, offering a semi-frequent instant kill on weaker enemies The Forgotten is thrown into.
  • 15►Kamikaze! Kamikaze! turns Tainted Forgotten into a flying bomb that deals no damage to the soul when thrown.
  • Some pills don't work because they apply their effects to The Forgotten. Paralysis is one example.
  • 15►White Pony White Pony can be used only when the Soul is holding Tainted Forgotten. Doing so will make a trail of holy light beams behind Tainted Forgotten as it moves instead of executing the usual charge attack. This makes it possible to deal much more damage with one charge as the player can move the Tainted Forgotten on top of an enemy to make every light beam land on them.
  • Throwing the Forgotten into a door will cause the player to enter that room. This can be done to avoid taking damage when exiting Curse Rooms.
  • When placing a bomb, the bomb will always appear at the current position of the Forgotten, not the Soul.
  • The Ipecac shot when using the Horf! pill will shoot out of the Forgotten, not the Soul.
  • Be careful of Mom's Hands, because they can grab Tainted Forgotten. This will deal no damage but will still cause teleportation back to the starting room.
  • Tainted Soul can activate the stop button in Greed Mode without penalty.
    • Tainted Forgotten's body can also be used to activate the button.

Item interactions[edit | edit source]

  • 15►Birthright Birthright: Gives the Soul the 15►Recall Recall item to retrieve the Forgotten immediately.
  • 15►Lead Pencil Lead Pencil: Will fire the Lead pencil shot on the 15th swing of the bone club. Holding down the fire button will cause the forgotten to both swing and charge the bone club. Swinging, then charging and firing, counts as two swings.

Unlockable Items[edit | edit source]

Trivia[edit | edit source]

  • Loading the console command "restart 40" it is possible to play as Tainted Soul without Tainted Forgotten, however, you cannot fire and without the presence of Tainted Forgotten, the game is only possible to beat this way because of RNG, and Tainted Soul will have the health of The Lost.
  • Tainted Soul bears resemblance to a scrapped character from Antibirth called Edith. The mechanic used by Tainted Forgotten also resembles one planned mechanic Edith was going to have.
  • Certain transformations such as Guppy revert the sprite of the Forgotten to appear to be standing upright.
  • Tainted Soul can go through the mirror in Downpour II without needing to turn into The Lost The Lost.

Bugs[edit | edit source]

Bug Bug! The Tainted Forgotten does not get their active item charged when a battery bum pays out, unless the battery bum is paid by throwing the bones at him. They can still pick up dropped batteries, but the direct charges from the bum are not applied.
Bug Bug! When fighting against Mom's Heart / It Lives, if the Forgotten is not picked up before the appearance of the entrances to Cathedral and Sheol, the player will automatically progress to whichever entrance the Forgotten rests on (potentially ruining an entire run).
Bug Bug! If the player's controller disconnects at any point while playing as Tainted Forgotten, the game will become softlocked.

1. Pressing any button with a controller to reconnect will activate coop mode, splitting the Soul and Bones part of the Tainted Forgotten between keyboard and controller controls. 2. Pressing any key on the keyboard will replace the Soul with another set of Bones, making the run impossible to continue. Alt + F4 does not prevent the softlock.

Bug Bug! If the Clicker active item is used to transform from any tainted character to the Tainted Forgotten, only the bones will spawn (without the soul), making it impossible to move and effectively ending your run.
Bug Bug! If the Bones part of the Tainted Forgotten is thrown into the minecart which leads to Knife Piece 2, the scene of the minecart going through the door will play out, but will not transition into the next room, softlocking the game. Restarting the game with Alt + F4 and continuing the run will fix this.


Isaac CharNav New.png Maggy CharNav New.png Cain CharNav New.png Judas CharNav New.png BB CharNav New.png Eve CharNav New.png Samson CharNav New.png Azazel CharNav New.png Lazarus CharNav New.png Eden CharNav New.png Lost CharNav New.png


Tainted Isaac CharNav New.png Tainted Maggy CharNav New.png Tainted Cain CharNav New.png Tainted Judas CharNav New.png Tainted BB CharNav New.png Tainted Eve CharNav New.png Tainted Samson CharNav New.png Tainted Azazel CharNav New.png Tainted Lazarus CharNav New.png Tainted Eden CharNav New.png Tainted Lost CharNav New.png Tainted Lilith CharNav New.png Tainted Keeper CharNav New.png Tainted Apollyon CharNav New.png Tainted Forgotten CharNav New.png Tainted Bethany CharNav New.png Tainted Jacob CharNav New.png

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