The Money Mountain is a decoration that was released on May 6, 2015 with the update. This decoration has 11 stages to which it can be upgraded. The 11th level gifts the Player with the exclusive costume for Mr. Burns - Monty Moneybags. Completing the Mountain is not necessary in order to progress in The Simpsons: Tapped Out. It is a form of an . There is neither a deadline, nor is it related to any level or event. It can be considered a personal achievement.