In-app advert for Master Chief Mode.

Master Chief Mode is a game mode for the iOS versions of Marathon, Marathon 2, and Marathon Infinity.



Note the Vidmaster Oath and Starting Level slider (Marathon Infinity for iOS)

Master Chief Mode is available as an optional in-app purchase for the iOS versions of all three games of the Marathon Trilogy. At launch, the price of this add-on was $0.99.

When active, Master Chief Mode has the following effects:

  • The game can be started on any level with immediate access to all weapons.
  • The game can be saved at any point, without requiring a pattern buffer.
  • The player has unlimited ammunition and health (invulnerability) as well as instant shield recharge.
  • The infamous Vidmaster Oath will appear in the New Game screen, as well as a Starting Level selection slider.

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