Changes

This page documents Antibirth's changes to Rebirth's content and its expansions.

Characters

The Lost

• The Lost now carries the D4, the Holy Mantle, and has spectral tears, without the need for Afterbirth and its unlocks.

Eden

• Eden no longer has variable luck (at least in as reported in missing hud). Instead, Eden always has their luck set to zero. Because of how Rebirth handles Eden luck, being revived as a different character doesn't change luck, even if the character was Eden.

Lazarus

• Lazarus received tweaked hair sprites.

Costumes

Dark Judas

• Most costumes now have unique Dark Judas variants, improving how the character looks when many collectibles have been obtained.

Red Alts

• Most costumes with an alternate appearance for when the character has been turned red now have an improved color palette.†

Pickups

Black Hearts

• Black hearts have a different sound when picked up.†
• Bigbook animation has been replaced with a screen shake and black particles that fall from the room's walls.
• Monsters disappear in a cloud of black smoke.

Bombs

• Bombs' detonation time is slightly increased.
• Fuse now has a lit appearance, and emits a small amount of light.

Items

D12

• D12 is featured as a new item, without the need for Afterbirth.
  • Antibirth's D12 has the same effect as Afterbirth's D12 merely by chance, both developers came up with the same idea independent of each other.
• D12 has a new sprite.
• D100 activates D12 as well.

Other items

• Many Screen Pop-ups such as Whore of Babylon and The Bible are now much faster than they were before.
• Book of Belial has a new animation. The damage buff it gives can be applied infinitely, and can also stack with Devil cards.
• Poop created by E Coli is not axis-aligned, but is now similar to a normal poop.†
• Picking up The Mind will have it display its own unique mini-map icon instead of all three map types.
• Butter Bean deals much more knockback to both enemies and shots. Shots reflected back can also hit enemies.
• Remote Detonator makes Bomb Rocks explode.

New sprites

• 

  Pentagram†

• 

  Caffeine Pill†

• 

  Isaac's Tears†

• 

  Proptosis†

• 

  Abaddon†

• 

  SMB Super Fan†

• 

  Sacred Heart

• 

  Polyphemus†

• 

  Lord of the Pit†

• 

  We Need to Go Deeper†

• 

  Brimstone

• 

  The Peeper†

• 

  Spirit of the Night†

• 

  The Compass†

• 

  Mom's Eye†

• 

  Distant Admiration†

• 

  Money = Power

• 

  Mom's Contacts†

• 

  Forever Alone†

• 

  Anemic†

• 

  Mysterious Liquid

Trinkets

New sprites

• 

  Mom's Pearl†

• 

  Isaac's Fork

• 

  Cain's Eye†

Cards

New sprites

• 

  Chaos Card†

• 

  Credit Card†

• 

  A Card Against Humanity†

Monsters

• Champion enemies have improved coloring.
• If a Clotty comes into contact with fire (i.e from a fireplace), it will turn into a Grilled Clotty.
• With the Book of Revelations, you can get 2 Harbringers in the same chapter, allowing you to more easily unlock the Super Meat Boy/Super Bandage Girl achievement. Alt stages might be a factor in whether this happens, it might be only one Harbringer per stage alt. (Ex: Famine spawning in Basement 1 and Famine spawning again in Cellar 2.) Possibly a bug.

Rooms

Sacrifice room

• Sacrifice Rooms now have an alternate backdrop with blood on the floor and walls.

Mechanics

Devil Deals

• Taking a 2 heart devil deal while you have one red heart container will cause your character to lose all health.
• Running out of red heart containers to spend will cause all other devil deals to turn into soul heart devil deals, like in Afterbirth.
• Soul heart devil deals are sometimes offered without having any red heart containers, like the original Binding of Isaac.

UI

• Beggars have unique mini-map icons.
• A new icon is displayed below the mini-map indicating any curses that are active on the floor.

Curse	Icon
Curse of the Blind
Curse of Darkness
Curse of the Lost
Curse of the Maze
Curse of the Unknown
Curse of the Labyrinth
Curse of the Cursed

Other Changes

• The lighting engine has been improved.
• Tear sprites have been adjusted to be more circular instead of polygonal.
• Isaac has a revamped animation for when using the beam of light leading to the Cathedral.†

Trivia

• Many of these changes were added officially to the game as part of Afterbirth†'s Booster Pack #5.
  • These have been denoted with a cross† symbol.
• More of these changes were added officially to the game as part of the Repentance DLC. If these changes weren't added, there were different changes that were added to the DLC.