Binding of Isaac: Rebirth Wiki

(in Afterbirth † and Repentance)

Metronome is an unlockable activated item added in The Binding of Isaac: Afterbirth †.

Effect[ | ]

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

Notes[ | ]

  • Beware using this as Character The Lost iconThe Lost or (in Repentance) Character Tainted Lost iconTainted Lost, as it can trigger self-damage items.
  • 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, Collectible Glowing Hourglass iconGlowing Hourglass, Collectible Plan C iconPlan C.
  • Metronome can grant items that haven't been unlocked yet.

Synergies[ | ]

  • (in Repentance)Collectible Book of Virtues iconBook of Virtues: If an active item was selected, grants the same wisp as that item. If a passive item was selected, grants any random wisp.
  • (in Repentance)Collectible Rock Bottom iconRock Bottom: Isaac keeps any stat upgrades gained by a random temporary item as long as the item brings his stats over their highest value reached on that run.

Interactions[ | ]

  • (except in Repentance) Collectible Blanket iconBlanket / Holy CardHoly Card / Collectible Holy Mantle iconHoly Mantle / Wooden CrossWooden 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 Collectible The Inner Eye iconThe Inner Eye will persist between rooms, but Isaac will not shoot three tears at once.
  • Collectible Car Battery iconCar 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.
    • Moreover, active item effects chosen by Metronome are only activated once.
  • (in Repentance)Collectible Bird Cage iconBird Cage: Spawns the familiar for the current room, leaving the room it spawned in will only left the sprite over Isaac's head without doing nothing.

Specific Item Effects[ | ]

  • Certain items used by Metronome have permanent, limited/unusual, or no effect. It is not clear what is intended and what is a bug.
  • Permanent effects include:
    • Health, coins, bombs, or keys that are granted to Isaac directly will persist.
    • Collectible Cube of Meat iconCube of Meat granted by Collectible Potato Peeler iconPotato Peeler will persist.
    • Collectible D8 iconD8's rerolled stat multipliers will persist, Collectible D4 iconD4 or Collectible D100 iconD100 will reroll all items permanently and Collectible D infinity iconD infinity mimicking any of the previous also has the same effects.
    • (in Repentance)Collectible Damocles iconDamocles will permanently grant the passive version of Damocles.
    • Collectible Dataminer iconDataminer's stat changes will persist.
    • Collectible Forget Me Now iconForget Me Now will restart the level.
    • (in Repentance)Collectible Genesis iconGenesis will work as normal and will cause Metronome to disappear from the active slot.
    • (in Repentance)Collectible Magic Skin iconMagic Skin will give Isaac a broken heart, spawn an item, and count as an activation of Magic Skin, causing future items to have a chance of being replaced by Magic Skin.
    • Collectible Void iconVoid absorbing passives and granting stats will persist.
  • Limited and unusual effects include:
    • Items do not spawn pickups and consumables that they might when picked up normally.
    • (except in Repentance) Items that adjust Isaac's size will not do so.
    • Collectible 1up! icon1up! and Collectible Guppy's Collar iconGuppy's Collar give no indication of extra lives, but will still work if you die in the room.
    • Collectible Abaddon iconAbaddon will not remove red hearts or grant black hearts.
    • (in Repentance)Collectible Alabaster Box iconAlabaster Box will immediately activate without requiring Soul HeartSoul Hearts.
    • Collectible Belly Button iconBelly Button and Collectible Mom's Purse iconMom's Purse allow picking up two trinkets in the room, but if another one is picked up outside, one trinket disappears completely along with the extra slot.
    • Collectible Black Candle iconBlack Candle only adds a black heart and does not remove curses.
    • Collectible Brittle Bones iconBrittle Bones and Collectible Divorce Papers iconDivorce Papers do not grant bone hearts. Brittle Bones can still be used to gain permanent tears ups if bone hearts are available.
    • Collectible Crown Of Light iconCrown Of Light only adds soul hearts, no damage multiplier.
    • Collectible Dead Cat iconDead Cat will only restore one red heart without setting heart containers to 1. It also gives no extra lives.
    • (except in Repentance)Collectible Deep Pockets iconDeep Pockets allows the picking up of two consumables while in the room and kept outside, but using them will lose the extra slot.
    • Collectible Eden's Blessing iconEden's Blessing will not grant an extra item for the next run.
    • Collectible Fate iconFate only grants flight, no Eternal HeartEternal Heart.
    • Collectible Little Baggy iconLittle Baggy, Collectible Polydactyly iconPolydactyly, and Collectible Starter Deck iconStarter Deck allow picking up two consumables while in the room and kept outside, but using them will lose the extra slot.
    • (in Repentance)Collectible Mega Mush iconMega Mush stats increases and Isaac's appearance revert on changing rooms, but Isaac retains the shadow of his large size, the ability to crush rocks, and invulnerability until the 30 seconds are up.
    • Collectible Moving Box iconMoving Box will cause items in the room to be packed away into the box until you either find the Moving Box or Metronome gives you the Moving Box effect again.
    • Collectible PHD iconPHD will not identify pills, but they are still guaranteed to not be negative.
    • Collectible Schoolbag iconSchoolbag allows picking up two activated items while in the room and they can be kept even outside, but the extra slot and one of the items is lost if another activated item is picked up.
    • (in Repentance)Collectible Spin to Win iconSpin to Win will give Isaac two orbitals.
  • The following items have no effect:
  • The following items have a reduced chance of activating:

In-game Footage[ | ]

Trivia[ | ]

  • 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 Collectible Dead Sea Scrolls iconDead Sea Scrolls.

Bugs[ | ]

Bug Bug! (except in Repentance) PC It is possible for this item to give an indefinite Collectible Breath of Life iconBreath of Life effect that persists throughout rooms, eventually killing the player.
Bug Bug! (in Repentance) PC If Collectible Urn of Souls iconUrn of Souls is activated through Metronome, it won't shoot fire and Isaac could get stuck with the urn in his hands unable to shoot tears. You can fix this by exiting and continuing the run, restarting the room without the urn and without Metronome charges.