Buttons

Buttons, originally cut content in The Binding of Isaac: Rebirth, have become a full fledged feature of The Binding of Isaac: Afterbirth.

Normal Buttons

Normal buttons can appear in a variety of rooms, including Secret Rooms, Curse Rooms, and Shops in Greed Mode. When pressed, they may spawn helpful pickups or harmful enemies.

Button Spawns

Afterbirth

This list is currently incomplete.

• 1-3 random Bomb, Heart, Coin, or Key pickups
• A Donation Machine
• A Beggar
• A Slot Machine
• A Fortune Teller
• 1-3 monsters or bosses in front of each exit of the room
• A trapdoor to the next floor
• Golden poop
• An item

Afterbirth †

There is a 50-50 chance to spawn a reward or a monster.

Rewards

Reward	Chance
Trap Door	5%
Gold Poop	5%
Poop	1%
An Item	1%
1-3 Coins	28%
1-2 Hearts	20%
1-2 Bombs	20%
Chest	2.5%
Locked Chest	2.5%
Bomb Chest	2.5%
Red Chest	2.5%
Slot Machine	2.5%
Fortune Teller	2.5%
Donation Machine	5%
Troll Bomb	10%

Monsters

1-4 monsters or bosses. The void spawns monsters and bosses based on the room's backdrop.

Basement

Monsters	Description
Attack Fly	Red fly that follows Isaac and deals touch damage.
Ring Fly	Gathers with any other Ring Flies in the room. These flies orbit around themselves, while following Isaac.
Dart Fly	Flies towards Isaac and attempts to mimic his movements. Deals contact damage.
Horf	Stationary enemy that fires a medium ranged blood shot at Isaac when he gets in range of them.
Charger	Slowly moves around the room, charging at Isaac when he gets in its line of sight.
Spider	Erratically moves towards Isaac and deals touch damage.

Caves

Monsters	Description
Charger	Slowly moves around the room, charging at Isaac when he gets in its line of sight.
Boom Fly	Flies around the room diagonally, dealing touch damage and exploding upon death.
Hive	Walks around the room, avoiding Isaac while spawning Attack Flies. Spawns a large number of flies upon death, which can be Black Flies, Attack Flies, or Pooters.
Nest	Walks around the room, avoiding Isaac while spawning Spiders. Spawns a Big Spider or a Trite upon death.
Maw	Slowly floats towards Isaac, firing blood shots when Isaac is in range of them.
One Tooth	Follows Isaac and periodically dashes towards Isaac when it gets close. Deals contact damage.

Depths

Monsters	Description
Baby	Slowly floats towards Isaac and fires blood shots. Occasionally teleports and reappears elsewhere.
Globin	Chases Isaac, dealing a full heart of contact damage. Upon taking enough damage, it collapses into a pile of goo, which can be killed. Will regenerate after a short period of time if not killed quickly.
Bony	Wanders around the room and throws a bone at Isaac when he is in sight.
Knight	Moves erratically around the room and charges toward Isaac when in line of sight. Can only be damaged from behind.
Fat Sack	Slowly walks towards Isaac. Occasionally leaps off-screen and attempts to land on Isaac, leaving a puddle of creep and shooting blood shots in 6 directions where it lands. Can turn into a Blubber upon death.
Gurglings	Charges towards Isaac when he lines up with them, leaving a trail of creep and shooting 6 blood shots.

Womb

Monsters	Description
MemBrain	Slowly moves around the room, occasionally hopping and firing 8 large blood shots in all directions. Splits into 2 Brains upon death.
Dinga	Slowly moves around the room, occasionally hopping, spawning Dips or firing 8 brown shots in all directions. Spawns 2 Squirts on death.
Lump	Fires 3 spread blood shots at Isaac when he gets in its line of sight. Will burrow underground and reappear elsewhere after firing.
Mom's Hand	Falls from the ceiling. If it lands on Isaac, it deals damage and teleports the player back to the spawn room of the floor. Entering a room containing Mom's Hand will warn the player with Mom's laugh.

Hush

Monsters	Description
Drowned Charger	Slowly moves around the room, charging at Isaac when he gets in its line of sight. Explodes into four blood shots in the ordinal directions upon death.
Blue Conjoined Fatty	Slowly walks towards Isaac and occasionally farts out a homing Ipecac shot at Isaac.

Sheol

Monsters
Little Horn
Greed
Rag Man

Cathedral

Monsters
Monstro
Gemini
The Duke of Flies

Dark Room

Monsters
Little Horn
Null

The Chest

Monsters
Monstro
Super Envy

Notes

• A button may spawn a trapdoor even in The Chest. If that happens and Isaac enters them, the floor is restarted as with Forget Me Now or 5-pip Dice Room.
• If a button spawns enemies, the doors to the room will not close, allowing Isaac to avoid fighting them.
  • It may be worth fighting Sins as they still drop items on death.
  • This was changed in Booster Pack #5. If the button spawns enemies then the doors will close.
• The enemies spawned by the button depend on the current floor, with difficult enemies such as Bosses being spawned on later floors.
• Donation Machines spawned in Greed Mode will be regular Donation Machines and not Greed Machines.

Silver Buttons

Silver Buttons appear in trap rooms, which have hazards in them which disarm upon pressing all of the silver buttons in the room. Hazards include spikes, retractable spikes, TNT, troll bombs, Stone Grimaces, Red Poop, Red Fireplaces, and pitfall traps. Once pressed, all the hazards will be disarmed - spikes will retract, Red Poop will transform into regular Poop, Red Fireplaces will turn into regular Fireplaces, and pitfalls will close.

Unlike Normal Buttons, all Silver Buttons in the room have to be pressed to clear the room even if all enemies are slain.

Bug! In trap rooms with retracting spikes, pressing the silver button within five frames of the spikes deploying will cause them to appear to fail to retract, but this is only a visual bug, and they will not deal damage. This can be fixed by leaving the room and re-entering.