Friendly Ball

Friendly Ball is an activated item added in The Binding of Isaac: Afterbirth.

Effects

 * Once thrown, the Friendly Ball will instantly capture any non-boss enemy it hits, removing them from the room.
 * Walking over a Friendly Ball after it captures an enemy will instantly recharge the item.
 * The next time the Friendly Ball is thrown, it will release the previously captured enemy as a friendly enemy.
 * Released enemies persist between rooms and floors and will follow Isaac until they die.
 * Friendly enemies cannot harm Isaac and do not need to be defeated to clear a room.
 * If Isaac leaves the room before the monster is released, the monster will stay in the ball until it is thrown again.
 * If the Friendly Ball does not capture an enemy, it will simply disappear after a couple seconds being on the ground. The next throw will work the same.

Interactions

 * : No effect.
 * : No effect on captured flies or spiders.
 * or : Friendly Fly/Spider enemies will be unable able to shoot, slowed down, and/or reverted to a weaker form, hindering this item's effectiveness on those enemies.
 * : Walking over a thrown Friendly Ball that captured an enemy will not recharge Void.

Trivia

 * The item is a reference to Poké Balls from the Pokémon franchise. Ironically, it doesn't at all resemble the actual Friend Ball in the franchise.

Seeds
MF7L HXQV (Treasure Room adjacent to spawn) 0JV6 C0XG (First Golden Treasure Room)