Once you’ve gotten the first half, you’re all but guaranteed to gain access to Mega Satan, as Angel rooms are almost certain to appear (so long as you avoid that pesky red heart damage). By angering the angel, and beating it in the ensuing boss fight, you’ll get one half of Dad’s Key. But before leaving, commit blasphemy by setting off a bomb in front of the angel statue.
If luck is on your side (and it usually is with this method), an angel room will spawn, overriding the usual devil room appearance. Once you’ve spawned the devil room and refused the deals, attempt to spawn another two floors later, again by avoiding damage. The easiest way to spawn a devil room is through the method I mentioned during Satan’s section – avoid taking red heart damage throughout the entire floor.īy this point in your time with Isaac, this should be pretty easy to pull off on the Basement, Caves and Depths floors, so stay focused and you’ll get through. To spawn an angel room, you’ll have to spawn a devil room first, and then refuse to take any deals with the devil.
