Binding of Isaac: Rebirth Wiki
Binding of Isaac: Rebirth Wiki

Monster Manual is an activated item.

Effects[]

When used, a random familiar will be spawned from the following:

  • Removed in Repentance Familiars spawned by Monster Manual last for the current room.
  • Added in Repentance Familiars spawned by Monster Manual last for the rest of the floor.
  • Added in Afterbirth † This item belongs to the Bookworm set. Collecting three items from this set will transform Isaac into Bookworm.

Notes[]

  • It can spawn familiars not yet unlocked.
  • Removed in RepentanceIf Cube of Meat or Ball of Bandages are spawned and Isaac already has either of those items, the level of these items will increase for the current room.
    • Added in RepentanceThe level of these items will increase for the current floor.
  • Using Monster Manual is a good method to unlock achievements related to Super Meat Boy and Super Bandage Girl.
    • Using Monster Manual and enough Batteries, Super Meat Boy and Super Bandage Girl can both be achieved in the same run.
    • If Isaac does not already have the 15►Cube of Meat Cube of Meat or 15►Ball of Bandages Ball of Bandages, Monster Manual can spawn a level 2 Cube of Meat or Ball of Bandages in one use.
  • Fly related items given by Monster Manual do not contribute to the Beelzebub transformation.
  • 15►Mongo Baby Mongo Baby will not copy familiars spawned by Monster Manual.
  • Familiars spawned by Monster Manual cannot be rerolled into other items by 15►D4 D4 or 15►D100 D100.
  • Added in Afterbirth15►Box of Friends Box of Friends will not duplicate familiars spawned by Monster Manual.
  • Added in Repentance15►Tinytoma Tinytoma orbitals will persist between floors until they are all destroyed. They will not respawn outside of the floor they were generated in.

In-game Footage[]

Gallery[]

Trivia[]

  • In the original The Binding of Isaac, due to a typing error this item was called "Monster Manuel". This has been corrected for Rebirth.
    • Added in Repentance Monster Manual may sometimes display the misspelled name when picked up.
  • Monster Manual is a direct reference to Dungeons & Dragons. Its appearance in the game closely resembles the Advanced Dungeons & Dragons First Edition Monster Manual.

Seeds[]

PC HGN1 GBFC (Treasure room adjacent to spawn)

PC A6V2 BD1M (Treasure room adjacent to spawn)

PC RPFQ NXGG (Treasure room adjacent to spawn)

PC Added in Afterbirth Normal and hard modes only PSXL 8WRV (treasure room adjacent to spawn)

PC Added in Repentance Hard mode only KSVH 8CTT (treasure room adjacent to spawn)


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