Parallel is the 10th level of Bloons.
To complete this level, all you have to do is pop the first 10 bloons over the monkey. Use the Rubber Blocks to pop the rest of the bloons.
- The level consists of 8 Rubber Blocks on the right side and 22 regular Bloons.
- It is possible to beat the level using only a dart, which can even pop all 22 Bloons if aimed well.