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. Repentance introduced 2 more, bringing the final total to 24. 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, 12 in Afterbirth+ and 14 in Repentance.
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, 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.
Tainted versions of characters are the exceptions to the system above, in that they only have 7 character-specific unlocks as opposed to 14. Marks for the timed challenges (Boss Rush and Hush) and main path bosses (Isaac, ???, Satan, and The Lamb) are grouped to give a single secret. Additionally, there are no secrets for beating normal Greed mode, as well as no character-specific unlocks for earning all Hard mode completion marks.
Name | Mark | Hard mode Mark |
Associated Boss | Isaac Unlock |
Magdalene Unlock |
Cain Unlock |
Judas Unlock |
??? Unlock |
Eve Unlock |
Samson Unlock |
Azazel Unlock |
Lazarus Unlock |
Eden Unlock |
The Lost Unlock |
Lilith Unlock |
Keeper Unlock |
Apollyon Unlock |
The Forgotten Unlock |
Bethany Unlock |
Jacob and Esau Unlock |
Tainted Isaac Unlock |
Tainted Magdalene Unlock |
Tainted Cain Unlock |
Tainted Judas Unlock |
Tainted ??? Unlock |
Tainted Eve Unlock |
Tainted Samson Unlock |
Tainted Azazel Unlock |
Tainted Lazarus Unlock |
Tainted Eden Unlock |
Tainted Lost Unlock |
Tainted Lilith Unlock |
Tainted Keeper Unlock |
Tainted Apollyon Unlock |
Tainted Forgotten Unlock |
Tainted Bethany Unlock |
Tainted Jacob Unlock |
All Non-Tainted Characters Unlock |
All Characters Unlock |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Heart | Mom's Heart or It Lives |
None | None | None | None | None | None | None | None | None | None | None | None | None | None | None | None | None | None | None | |||||||||||||||||||
Cross | Isaac | None | None | ||||||||||||||||||||||||||||||||||||
Polaroid | ??? | None | None | ||||||||||||||||||||||||||||||||||||
Inverted Cross | Satan | None | None | ||||||||||||||||||||||||||||||||||||
Negative | The Lamb | None | None | ||||||||||||||||||||||||||||||||||||
Brimstone | Mega Satan | None | |||||||||||||||||||||||||||||||||||||
Star | Boss Rush | None | None | ||||||||||||||||||||||||||||||||||||
Hush's Face | Hush | None | None | ||||||||||||||||||||||||||||||||||||
Cent Sign | Ultra Greed | None | None | None | None | None | None | None | None | None | None | None | None | None | None | None | None | None | None | None | |||||||||||||||||||
Cent Sign | Ultra Greedier | None | None | ||||||||||||||||||||||||||||||||||||
Wrinkled Paper | Delirium | None | None | ||||||||||||||||||||||||||||||||||||
Knife | Mother | None | None | ||||||||||||||||||||||||||||||||||||
Dad's Note | The Beast | None | None | ||||||||||||||||||||||||||||||||||||
All Hard Mode Marks | (All Above) | None | None | None | None | None | None | None | None | None | None | None | None | None | None | None | None | None | |||||||||||||||||||||
Notes
- 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.
- 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 is unlocked by defeating Mom's Heart, Isaac, ???, Satan, The Lamb, and Boss Rush on Hard mode as The Lost.
- It is necessary to additionally defeat Hush, Mega Satan, and Ultra Greed.
- It is also necessary to additionally defeat Ultra Greedier and Delirium. This also applies to all other unlocks requiring beating all bosses on Hard mode.
- 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 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 will transform the current character into ??? upon death, and Broken Ankh has a 22.22% chance to transform the current character into ??? upon death.
- 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.
- Missing Poster will transform the current character into The Lost upon death if he's already unlocked.
- 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), as well as with The Beast and Mother. This means that a minimum of four 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.
- 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 Binding of Isaac: Rebirth |
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