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Jolly Roger is an Extreme Map in the iOS version of Bloons Tower Defense 4. Because it is part of the Extreme Map Pack, it is very, very difficult.
This track is on a flag. The paths of Jolly Roger go in an X-shape. In the eyes of the skull on the flag, there are two pools, for water towers. Towers can be placed anywhere on the flag except on the path.
- Jolly Roger is a flag to identify real-life pirate ships.
- This is the only BTD4 iOS extreme track that doesn't have a reference to popular culture.
- This track is similar to Double Double Cross, Main Street, and Ascension, due to the similar path layout.