Pirates is the 39th Expert floor in Monkey Ball and Super Monkey Ball, and the 68th Expert stage in Super Monkey Ball Deluxe. It also appears as the 178th Ultimate stage with continues, and the 218th without.
This stage features oscillating quarter pipes that slide back and forth. They will alternate between moving faster and slower. It is considered hard and crazy because it is oscillating.
To get to the goal, stay near the bottom of each platform, so you will less likely be thrown off by force. Make sure to roll from platform to platform when they are moving slower; otherwise, it will likely feel like a Master floor. Repeat this pattern until you make it to the goal.