Binding of Isaac Achievement: PONG
In-Game Secret Number
Beat Chapter 2 without taking damage
Have both the Broken Watch and the Stop Watch in your collection
Take 25 devil deals
Defeat Ultra Greedier as Keeper
Use Pandora's Box in the Dark Room
Defeat Delirium as Samson
Defeat Ultra Greedier as Isaac
Defeat Ultra Greed as The Forgotten
Unlocked a new co-player baby.
Defeat Mega Satan as The Forgotten
Unlocked a new character.
Defeat Mega Satan for the 1st time
Defeat Delirium as Lazarus
Defeat Ultra Greedier as Azazel
Defeat Mom's Heart 11 times
Defeat Mom for the 1st time
Defeat Ultra Greedier as ???
Alt stage to the womb.
Defeat It Lives 30 times
Defeat Delirium as Azazel
Complete the Boss Rush as The Forgotten