Gameplay
| Mob left | The One | The Mob |
|---|---|---|
| 100-91 | 0 | 0 |
| 90-81 | 160 | 0 |
| 80-71 | 300 | 0 |
| 70-61 | 600 | 0† |
| 60-51 | 800 | 0† |
| 50-41 | 1,200 | 0† |
| 40-31 | 2,000 | 80† |
| 30-21 | 3,000 | 160† |
| 20-11 | 5,000 | 400† |
| 10-1 | 6,000 | 800† |
| 0 | 10,000 | N/A |
|
† Along with the top three members of "The Crowd", surviving mob members also receive an Xbox Live Arcade game. Due to gaming laws, players in CT, IA, MD, VT, or Quebec are ineligible for prizes. |
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At the beginning of each 1 vs. 100 Live round, a player is selected as "The One" and 100 players are selected to be "The Mob". Everyone else remains in "The Crowd". Selection is based on weekly, round, and season (lifetime) score.
The game's rules are nearly identical to the game show's: a question is posed, and both The One and The Mob must select an answer from three choices. If The One gets the question wrong, the game is over and the prize money is split up amongst The Mob. If The One gets the answer right, members of The Mob who got the question wrong are eliminated. The payout goes up for every tenth member of The Mob eliminated. The One can opt to quit with their winnings at various intervals, or press their luck and continue on.
The Live version adds the notion of "The Crowd", which allows hundreds of thousands of players to compete alongside The Mob and The One. The top three members of The Crowd win an Xbox Live Arcade game. The Crowd represents one of the three "helps" available to the one, which can be used at any time to lock in their answer. If The One fails to answer the first three questions, the helps are automatically used. The helps are:
- Trust the Mob - The One's answer becomes whatever the majority of The Mob answered.
- Trust the Crowd - The One's answer becomes whatever the majority of The Crowd answered.
- Trust the Top 10 - The One's answer becomes whatever a majority of the 10 top scoring players in the current round answered from the crowd or mob. (In the first season, this was known as "Trust the Brain" which took the answer from the top performing player)
The better a member of The Crowd does, the better chance they have of being selected to be a part of The Mob or The One. Selection is based upon statistics for speed, accuracy, and the number of questions answered for that week. A player can only be chosen as The One once per season and as a member of The Mob once per Primetime episode. Each season will give players an opportunity to earn another 200 gamerscore.
Read more about this topic: 1 Vs. 100 (Xbox 360 Video Game)