Binding of Isaac Achievement: Bound Baby
In-Game Secret Number
Unlocked a new co-player baby.
Earn all Hard Mode Completion Marks as The Forgotten
Defeat Delirium as Cain
Increase in size 5 times in a single run. Sources of increased size include "One Makes you Larger" pills, XI - Strength, and Magic Mushroom
Defeat Delirium as Lazarus
Defeat Delirium as Keeper
Sleep in 10 beds
Defeat The Lamb without taking hearts, coins, and bombs through an entire run
Acquire Blood Clot 10 times
Alt stage to the depths.
Defeat It Lives 21 times
Defeat The Lamb as Apollyon
Unlocked new bosses!
Defeat ??? as 3 different characters
Recharge using batteries 20 times
Defeat The Lamb in under 20 minutes
Defeat Little Horn 20 times
Unlocked a new challenge.
Defeat ??? or The Lamb for the first time
Defeat Mom's Heart or It Lives! on hard modeas Apollyon
Unlocked a new character.
Obtain 50 items on a run (e.g., via two Steam Sales and Restock - Duplicate passives/familiars count towards the total, e.g., multiple Breakfasts)
Take 25 devil deals