Binding of Isaac Achievement: Wooden Cross
In-Game Secret Number
Defeat Delirium as The Lost
Defeat Little Horn 20 times
Defeat The Lamb as The Forgotten
Alt stage to the basement.
Defeat Mom's Heart 11 times
Beat chapter 1 without taking damage
Defeat Delirium as Magdalene
Open 20 locked chests
Pick up 5 familiars in a single run
Use cards and runes 20 times
Defeat Delirium as Azazel
Take 25 devil deals
Defeat Delirium as The Forgotten
Defeat Delirium as Judas
Defeat Hush as The Forgotten
Unlocked a new character.
Defeat Mega Satan for the 1st time
Use I - The Magician or Telepathy for Dummies while already having homing tears (Sources of this effect include I - The Magician, Telepathy for Dummies, Spoon Bender, Sacred Heart, or Godhead).
Pick up two technology items in one run
Get a 3-win streak
Unlocked a new co-player baby.
Defeat Mega Satan as Apollyon