72 Hour Mode (Dead Rising)

72 hour mode is the first available game mode in Dead Rising. Frank West is the main character and only playable character, though Isabela is "controlled" in Overtime Mode, the extended part of 72 hour mode. 72 hour starts with the photo-taking cutscene (while Frank is with Ed DeLuca) and ends in various ways, with Ending A being the true ending.

Endings
The endings depend on the players actions:
 * A: The true ending, and also unlocks Overtime Mode. Ed is attacked by a zombie aboard his helicopter and crashes. Frank falls to his knees and does nothing to defend himself from the incoming zombies behind. (This leads into Overtime Mode)
 * B:
 * C: Ed observes the helipad from another rooftop and cannot see Frank. He assumes Frank's dead and makes to leave but is attacked by a zombie.
 * D:
 * E:
 * F: Carlito's bombs are allowed to detonate during Bomb Collector.