Smart Fly
ItemRebirthUnlocked
passiveGame ID 264★★★★
How do you unlock Smart Fly?
Verified starting unlockSource data confirms that no unlock is required.
Spawns an orbital familiar that blocks enemy shots. Upon taking damage, the familiar will pursue enemies for the rest of the room, dealing damage.
Available from the start
No unlock needed — this is available in every new save file.
What unlocking Smart Fly leads to
Nothing depends on this yet.
Source: bindingofisaacrebirth.wiki.gg
Imported 2026-09-13