Ninja Monkey

thumb|300px|right The Ninja Monkey(as seen in the first 20 levels of BTD5)

Is said to be a "stealthy tower that can see Camo Bloons and throws sharp shurikens rapidly." It is unlocked at Rank 6. You can purchase it for $510(600). Its known upgrades are the following:
 * 1) Ninja Disipline: Increases attack range and attack speed.
 * 2) Unknown
 * 3) Unknown
 * 4) Unknown


 * 1) Unknown
 * 2) Unknown
 * 3) Unknown
 * 4) Unknown