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Item icon
Item altar
"Waggles a finger"
Table dividing line 1.png
Item ID
Table dividing line 2.png
Recharge Time
2 rooms 2 rooms
Table dividing line 3.png
Collection Grid
Removed in Repentance(page 5, column 3, row 1)
Added in Repentance(page 5, column 4, row 1)
Unlock Method
Metronome Defeat Ultra Greedier as Eden
Added in Afterbirth †

Metronome is an unlockable activated item added in Afterbirth †.

Effect[edit | edit source]

  • Grants a random item's effect for the current room.

Notes[edit | edit source]

  • Beware using this as The Lost, as it can trigger self-harm items and kill him.
  • Using this item multiple times in the same room will replace the previous item with a new one.
  • Metronome cannot grant the effects of itself, 15►Glowing Hour Glass Glowing Hour Glass or 15►Plan C Plan C.

Interactions[edit | edit source]

  • 15►Blanket Blanket / Holy Card / 15►Holy Mantle Holy Mantle / Wooden Cross Wooden Cross: if Metronome is used while the shield is active, any stat changes or familiars/orbitals generated from Metronome will persist between rooms until Metronome is used again or replaced with another active item. Items that modify your stats and have other additional effects will keep the stats but the effect will be gone after leaving the room. For example, the tears down applied from 15►The Inner Eye The Inner Eye will persist between rooms, but Isaac will not shoot three tears at once.
  • 15►Car Battery Car Battery: Metronome is activated twice at once as expected, but the item chosen for the first activation is shown raised above Isaac's head, instead of the second one that actually remains active.

Specific Item Effects[edit | edit source]

In-game Footage[edit | edit source]

Trivia[edit | edit source]

  • The name, pickup quote, and effect of this item are a reference to the move 'Metronome' from the Pokémon franchise.
  • This item works similarly to the item 15►Dead Sea Scrolls Dead Sea Scrolls.
Bug Bug! PC It is possible for this item to use an item that can teleport one to the I AM ERROR room. During the Mother Boss fight, this can happen. Using the trapdoor causes the game to crash.
Bug Bug! PC It is possible for this item to give an indefinite Breath of Life effect that persists throughout rooms, eventually killing the player.

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