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Secrets
Here you can find secret-ish stuff (Unlockables etc). As of V1.48, there are 98 total secrets to unlock.

Tinted Rocks

Tinted Rocks Blue rock can be found almost everywhere; even in Womb, but can be very difficult to notice. What differentiates them from normal rocks is a slight blue tint and a little "X" (presumably X marks the spot) in the upper right corner. It's usually worth the bomb to destroy this special rock because you can find some nice drops:

  • 1 soul heart Soul heart
    Blue rock map
  • 2 soul hearts Soul heartSoul heart
  • 3 soul hearts (rare) Soul heartSoul heartSoul heart
  • 1 bombBomb and 1 soul heart Soul heart
  • 1 bomb Bomb, 1 pill Pill Blue Green Ground and 1 soul heart Soul heart
  • 1 key Key and 1 soul heart Soul heart
  • 1 key Key and 1 bomb Bomb
  • 1 key Key
  • Small Rock 30px
  • Small Rock 30px and 1 soul heart Soul heart
  • Small Rock 30px and 1 key Key
  • Chest Chest
  • Gold chest Gold chest


It also has been speculated that this is a reference to the sword in the stone, as one can interpret the X's bottom left leg extended down, creating the outline of a sword.

X-Rocks in the Womb cannot be distinguished from other rocks.

These rocks are affected by Ace of Spades, Child's Heart and Match Stick trinkets.

Ace of Spades - Increased chance of a card drop

Child Heart - Increased chance of a heart drop

Match Sticks - Increased chance of a bomb drop

The Harbingers

When unlocked by defeating Mom in the Depths 2 for the first time, the Harbingers are added to the selection of bosses that can appear in each of their respective floors. Additionally, each Harbinger has a small chance of being replaced by the Headless Horseman.

Carrying the Book of Revelations (30px unlocked by defeating any Harbinger) slightly increases the odds of encountering a Harbinger and using the Book greatly increases the odds of encountering a Harbinger on any of their respective floors.

A Harbinger can only be encountered once, defeating it or the Headless Horseman will prevent a Harbinger from appearing in the second floor of a level. This applies mainly to the Basement (Famine) and the Caves (Pestilence) where encountering either the Harbinger or Horseman on the first floor will prevent either from appearing again on the second floor.


Harbingers as well as the Headless Horseman are able to appear in Sheol in normal rooms.

Defeating any Harbinger will reward the Cube of Meat item, defeating the Headless Horseman will reward A Pony. Unless the Headless Horseman replaces a Harbinger then a Cube of Meat is dropped.

If you use the Book of Revelations while in Sheol, there is a chance in which the Headless Horseman can replace Satan.

In-Game Secrets List (64)

  • Beware - There are lots of achievement bugs, some of yours might not register properly with steam or your game - to make sure yours are saved in the game - after you finish(or die) exit the game normally via its exit button.
Unsorted Slideshow For Quick Preview.


Basic Progression Unlocks

Spider

Finish The Basement.

(Collectible item)

SpelunkerHelmUnlock

Finish The Caves.

(Collectible item)

Womb Unlock

Finish The Depths.

(Opens chapter/map)

Tooth

Defeat every regular boss from in The Basement.

(Activated item)

Lil Chub unlock

Defeat every regular boss from in The Caves.

(Collectible item)

Horns Unlock

Defeat every regular boss from in The Depths.

(Collectible item)


Character and Combo Unlocks

Cain secret

Get 55 pennies Penny in a single playthrough.

(Playable Character)

Lucky foot secret

Get 55 pennies Penny in a single playthrough.

(Collectible item)

Magdalene secret

Get 7 health Full heart containers in a single playthrough.

(Playable Character)

The yum heart

Get 7 health Full heart containers in a single playthrough.

(Activated item)

Judas secret

Defeat the boss in The Womb 2 for the first time.

(Playable Character)

Book of belial

Defeat the boss in The Womb 2 for the first time.

(Activated item)

Unlock The triple question

Defeat the boss in The Womb 2 for the tenth time.

(Playable Character)

A poop

Defeat the boss in The Womb 2 for the tenth time.

(Activated item)


Game Completion Unlocks.

A noose

Defeat the boss in The Womb 2 for the second time.

(Collectible item)

The nail

Defeat the boss in The Womb 2 for the third time.

(Activated item)

A quarter

Defeat the boss in The Womb 2 for the fourth time.

(Collectible item)

A fetus in a jar

Defeat the boss in The Womb 2 for the fifth time.

(Collectible item)

Everythink terrible

Defeat the boss in The Womb 2 for the sixth time.

(Difficulty Increase)

The wafer

Defeat the boss in The Womb 2 for the seventh time.

(Collectible item)

Unlock MoneyIsPower

Defeat the boss in The Womb 2 for the eighth time.

(Collectible item)

Itlivesunlock

Defeat the boss in The Womb 2 for the ninth time.

(New Boss)

A cross

Defeat the boss in The Womb 2 with Magdalene.

(Collectible item)

A bag of pennies

Defeat the boss in The Womb 2 with Cain.

(Collectible item)

Robo baby

Defeat the boss in The Womb 2 with Judas.

(Collectible item)

Achieve D6

Defeat the boss in The Womb 2 with ???.

(Activated item)


Special Bosses Special Loot.

Something from the future

Finish the Basement 25 times.

(New Boss)

Little steven

Defeat Steven (alternate boss).

(Collectible item)

Something cute
Finish the Caves enough times.


(New Boss)

Lil Chad unlock

Defeat C.H.A.D. (alternate boss).

(Collectible item)

GishBossUnlock
Finish the Depths 30 times.


(New Boss)

UnlockGish

Defeat Gish (alternate boss).

(Collectible item)

Horsemen Unlock

Defeat the Boss in The Depths 2.

(New Bosses)

The book of revel

Defeat any Harbinger/Horseman.

(Activated item)

Meat Unlock

Defeat the Boss in The Depths 2.

(Collectible item)

Book Of 7 Unlocked
Defeat all of the Seven Deadly Sins over multiple playthroughs.

(Activated item)


Separate Task Based

A small rock

Destroying enough X marked rocks over multiple playthroughs - Blue rock

(Collectible item)

Mr Mega unlock

Destroy 10 X marks the spot rocks over multiple playthroughs. Blue rock

(Collectible item)

HaloUnlock

Defeat the Boss in The depths 2 (Mom) by using the Bible.


(Collectible item)

Contact Unlock

Collect Mom’s eye and another mom item in the same playthrough.

(Collectible item)

Gamekid Unlock

Visit The Arcades enough times over multiple playthroughs.

(Activated item)

Moms Pills Unlock

Use several Blood Donation Machines in multiple playthroughs.

(Activated item)

Cold Unlock

Collect Roid Rage, The Virus, and Growth Hormones in the same playthrough.

(Collectible item)

Bandage Unlock

Make Meat Boy (get 4 pieces of meat in the same playthrough) Book of Revelations helps.

(Collectible item)

Nercronomicon Unlock

Use the Death Card several times over multiple playthroughs. XIII Death

(Activated item)

The parasite

Collect two "dead things" (Bob’s Rotten Head, Guppy, Max’s Head, Tammy’s Head) in a single playthrough.

(Collectible item)

Pinkin shears

Die 100 times.



(Activated item)

Bean secret

Destroy several turds 25pxover multiple playthroughs.


(Activated item)

Krampus






Defeat Krampus .

(Collectable item)









Iron Man (Lucky Man) Unlocks
Basement Boy Achievement

Finish the two Basement levels without taking any damage.

(You just need to kill the bosses not clear all rooms.

Spelunker Boy Achievement

Finish the two Caves levels without taking any damage.

(You just need to kill the bosses not clear all rooms)

Dark Boy Achievement

Finish the two Depths levels without taking any damage.

(You just need to kill the bosses not clear all rooms)

Mamas

Finish the two Wombs levels without taking any damage.

(You just need to kill the bosses not clear all rooms)

Be aware - These particular unlocks are glitchy, a lot of people have problems with them - Deals with the devil in the level group you are trying get will count as damage. Edmund says he is working on it.

Haloween Update Goodies

The RaZoR Unlock

Finish The Womb with Eve.


(Activated item)

Knife Unlock
Kill Satan with Isaac.


(Collectible Item)

Eve Unlock

Make 2 Separate Devil Room Deals in one playthrough.

(Playable Character)

A Curse Unlock

Make 2 Separate Devil Room Deals in one playthrough.

(Collectible Item)

The Monster Manuel Unlock

Kill Satan with Judas.


(Activated Item)

A Dead Bird Unlocked Crap

Make 2 Separate Devil Room Deals in one playthrough.

(Collectible Item)

Bag of Bombs Unlock

Kill Satan with Cain.

(Collectible Item)

Guardian Angel Unlock

Kill Satan with Maggy.

(Collectible Item)

Demon Baby Unlock

Kill Satan with Eve.

(Collectible Item)

Forget Me Now Unlock

Kill Satan with ???.

(Activated/Consumable Item)

[Takes up your item slot and dissapears when used]

Golden God Achievement

This achievement can be gained by collecting all but one of the items if you have defeated Krampus and found the lump of coal. .

God Main Screen

This is your main screen with the golden god

Wrath of the Lamb In-Game Secrets List (34)

Characters


Game Completion Unlocks


The Chest

Challenges


Separate Task Based

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