Ninja Masters were Number Woo's elite henchmen from Asyanica. They had a fireball attack. The fireballs could move left and right, the best way to avoid them was to jump at the last second. They could also make holographic doppelgangers.
Hyabusa was the personal bodyguard of Number Woo, and so was last fought. His name came from Hayabusa (隼); the Japanese word for falcon.
List of known Ninja Masters that served Number Woo
- Secret Agent Clank (first appearance)