In the game, you play as one of 14 characters. If a player selects Heidi, the player will play as Heidi as she goes into labor. If the player hits "B" button enough times, the child is revealed to be Jesus Christ. If the player did anything else, Heidi would miscarry. Some players have been known to have had miscarriages themselves after playing as Heidi. Including men.
The 13 characters other than Heidi on the "choose a character" screen are Alejandro Jodorowsky. Selecting these crashes the DS.