Arc is the 12th level of Bloons.
To complete this level, you need to pop the bloons, but the dart should be thrown as a looping shot, in order to pop many bloons at once. It is recommended to pop the Tack Bloons, for extra poppage. Try to avoid the Ice Bloons, though.
- In this level, the Ice Bloon makes its first appearance.
- The level consists of 42 Bloons "forming" an arc, and 2 Ice Bloons (1 above and 1 below the arc).