Bob's 27
Hit doubles to add to your score, miss and lose points.
How to play: Start with 27 points. Each round, the target is a specific double (double 1 in round 1, double 2 in round 2, and so on). Hit the double and add double its face value to your score. Miss completely and subtract that value instead. Drop to zero or below and you are eliminated. The player with the highest score after all rounds wins.

| Setting | Options | Notes |
|---|---|---|
| Mode | Normal / Allow Negative Score | Whether a player is eliminated once their score would drop to or below zero, or can continue playing at a negative score. |
| Order | 1-20-Bull / 1-20 | The sequence of target doubles — through the bullseye at the end, or stopping at double 20. |