Completion Marks

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Completion marks are earned by completing specific objectives in The Binding of Isaac: Rebirth. As you complete these objectives, the post-it note on the character select screen fills up with Completion Marks. If objectives are completed in Normal mode, the completion marks are solid black. If objectives are completed in Hard mode, the completion marks are outlined in red. If a completion mark is earned in Hard mode without first earning it in Normal mode, the game will count both the normal mark and the Hard mode mark as unlocked. This means that completing a run in Hard mode will earn you every secret along a particular path while completing it in Normal Mode will cause you to miss the Mom's Heart unlock.

In the main game, there are 6 unique completion marks, and each one comes in two varieties, adding up to 12 marks in total. Afterbirth introduced 3 more, bringing the total to 17, as Greed mode only has one mark. Afterbirth+ introduced 1 more, as well as an additional mark for Greed mode, bringing the final total to 20. Each mark has a character-specific unlockable secret associated with it, and there are 6 secrets per character in the base game, while there are 10 in Afterbirth and 12 in Afterbirth+.

In the base game Mom's Heart/It Lives is the only boss that has a character-specific unlock if you beat it in Hard mode instead of Normal mode, with one exception - Godhead Godhead, which is unlocked by beating every boss in Hard mode with The Lost. Therefore, it is not necessary to earn every Hard mode completion mark to achieve Platinum God, only every Hard mode Heart mark, with The Lost as an exception. In subsequent DLC, every character has a co-op baby that can be unlocked for earning all of their completion marks on Hard mode.

Name Mark Hard mode
Mark
Associated Boss Isaac
Unlock
Maggy
Unlock
Cain
Unlock
Judas
Unlock
???
Unlock
Eve
Unlock
Samson
Unlock
Azazel
Unlock
Lazarus
Unlock
Eden
Unlock
The Lost
Unlock
Added in Afterbirth
Lilith
Unlock
Added in Afterbirth
Keeper
Unlock
Added in Afterbirth †
Apollyon
Unlock
Added in Afterbirth †
The Forgotten
Unlock
Heart
Heart
Heart - Hard mode
Mom's Heart
or It Lives
Lost Baby Cute Baby Glass Baby Shadow Baby Dead Baby Crow Baby Fighting Baby Begotten Baby Wrapped Baby Glitch Baby -0- Baby Goat Head Baby Super Greed Baby Smelter Marrow
Cross
Cross
Cross - Hard mode
Isaac Isaac's Tears A Cross A Bag of Pennies Guillotine The D6 Eve's Bird Foot Bloody Lust Satanic Bible Lazarus' Rags Blank Card Isaac's Heart Rune Bag Keeper holds Wooden Nickel Locust of Wrath Slipped Rib
Star
Star
Star - Hard mode
Boss Rush Isaac's Head Maggy's Bow Cain's Other Eye Judas' Shadow ???'s Only Friend Eve's Mascara Samson's Chains The Nail Missing No. Undefined The D100 Immaculate Conception Sticky Nickels Locust of Conquest Divorce Papers
Inverted Cross
Inverted cross
Inverted cross - Hard mode
Satan Mom's Knife Guardian Angel A Bag of Bombs Judas' Tongue Forget Me Now The Razor Blood Rights Daemon's Tail Broken Ankh Book of Secrets The Mind Serpent's Kiss Keeper holds Store Key Locust of Pestilence Pointy Rib
Polaroid
Polaroid
Polaroid - Hard mode
??? The D20 Celtic Cross Cain's Eye The Left Hand Fate Sacrificial Dagger Blood Penny Abaddon Store Credit Mysterious Paper The Body Cambion Conception Deep Pockets Locust of Famine Jaw Bone
Negative
Negative
Negative - Hard mode
The Lamb Missing Poster Maggy's Faith Abel Curved Horn ???'s Soul Black Lipstick Samson's Lock Demon Baby Pandora's Box Mystery Sack The Soul Succubus Karma Locust of Death Brittle Bones
Brimstone Added in Afterbirth
Brimstone
Brimstone - Hard mode
Mega Satan Cry Baby Red Baby Green Baby Brown Baby Blue Baby Lil' Baby Rage Baby Black Baby Long Baby Yellow Baby White Baby Big Baby Noose Baby Mort Baby Bound Baby
Cent Sign Added in Afterbirth
Cent sign - Greed mode
Added in Afterbirth †
Cent sign - Greed mode
Added in Afterbirth
Ultra Greed Lil' Chest Censer Evil Eye My Shadow Cracked Dice Black Feather Lusty Blood Lilith Key Bum GB Bug Zodiac Box of Friends Rib of Greed Brown Nugget Finger Bone
Cent Sign Added in Afterbirth †
Cent sign - Greedier mode
Ultra Greedier D1 Glyph of Balance Sack of Sacks Eye of Belial Meconium Crow Heart Stem Cell Bat Wing Plan C Metronome Dad's Lost Coin Duality Eye of Greed Black Rune Dad's Ring
Hush's Face Added in Afterbirth
Hush's face
Hush's face - Hard mode
Hush Fart Baby Purity D12 Betrayal Fate's Reward Athame Blind Rage Maw of the Void Empty Vessel Eden's Blessing Sworn Protector Incubus Keeper now holds... A Penny! Hushy Hallowed Ground
Wrinkled Paper Added in Afterbirth †
Wrinkled paper
Wrinkled paper - Hard mode
Delirium D Infinity Eucharist Silver Dollar Shade King Baby Dull Razor Bloody Crown Dark Prince's Crown Compound Fracture Eden's Soul Holy Card Euthanasia Crooked Penny Void Book of the Dead
All Hard Mode Marks Added in Afterbirth
All marks - Hard mode
Added in Afterbirth
(All Above) Buddy Baby Colorful Baby Picky Baby Belial Baby Hive Baby Whore Baby Revenge Baby Sucky Baby Dripping Baby Cracked Baby Godhead Dark Baby Sale Baby Apollyon Baby Bone Baby
All marks - Hard mode
Added in Afterbirth †

Notes[edit | edit source]

  • Added in Afterbirth As Greed mode is a unique mode separate from Normal or Hard mode, it always appears on the completion note with the red outline otherwise found on Hard mode marks.
    • Added in Afterbirth † This symbol is used to indicate completion of Greedier mode, and the Greed mode symbol is changed to be one without a red outline.
  • While it is possible to fight Mega Satan in the base game, completion marks for defeating him and their respective unlockables are only available in the subsequent DLC.
  • In the base game, Godhead Godhead is unlocked by defeating Mom's Heart, Isaac, ???, Satan, The Lamb, and Boss Rush on Hard mode as The Lost.
  • Some items and trinkets transform Isaac into another character. All completion marks earned in that run from the moment of death onwards will count towards the new character, not the old.
    • Judas' Shadow Judas' Shadow will transform the current character into Dark Judas upon death. Dark Judas is considered the same character as Judas by the game and can earn all of Judas' completion marks.
    • Ankh Ankh will transform the current character into ??? upon death, and Broken Ankh Broken Ankh has a 22.22% chance to transform the current character into ??? upon death.
    • Lazarus' Rags Lazarus' Rags will transform the current character into Lazarus Risen upon death. Lazarus Risen is considered the same character as Lazarus by the game and can earn all of Lazarus' completion marks.
    • Added in Afterbirth Missing Poster Missing Poster will transform the current character into The Lost upon death.
    • Added in Afterbirth †Clicker Clicker will transform the current character into a random character upon use.
  • With Clicker and a reliable method of reaching the I AM ERROR room (like Teleport 2.0 or Undefined, held with a Schoolbag), The Void can be repeated endlessly and cleared with every playable character in a single run.
    • Substituting the item to reach the I AM ERROR room with a Forget Me Now and some method to duplicate it endlessly (like Crooked Penny combined with Glowing Hour Glass to rewind failures), this can be applied to any floor and boss in the game, allowing any completion mark to be obtained with every character in a single run. Moving Box will also be necessary to bring all of the required items with you on each reset.
      • The Boss Rush requires the additional duplication of a Mama Mega! to repeat endlessly.
      • Mega Satan can only be repeated with the addition of other unlimited items that can unlock the door, such as a duplicated Get out of Jail Free Card, Dad's Key, or Mr. ME!, because the key disappears after a single-use. Mega Satan also has a 50% chance of automatically ending the run upon defeat, so it is only recommended to focus on that completion mark after finishing all other possible marks as the desired characters.
      • Completion marks for Satan and The Lamb are still mutually exclusive with completion marks for Isaac (Boss) and ??? (Boss). This means that a minimum of two runs are required to obtain every character's completion marks using this strategy.
      • This strategy does not work for Greed mode completion marks. While most of the required items can be acquired by exhausting the mode's normal item pools, Moving Box is completely unobtainable (except in the extremely unlikely case that Eden begins with it.) A maximum of 3 Greed mode completion marks can be obtained in a single run using 2 or more items that revive you as a different character, alongside 2 Forget Me Nows and a Schoolbag to hold them.
      • Getting all these items in a single run usually requires the use of a strategy to create infinite items and exhaust the item pool, like Blank Card combined with Jera. While this can be time-consuming to achieve in a single run, it can save you a great deal of time and additional runs if you are aiming for 100% completion.
    • Substituting Clicker with items that revive you as another character upon death will allow you to get the extra completion marks for The Lost, ???, Lazarus, and Judas, but will not allow for completion with every character as the Clicker does.


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