Robot ninjas

The Robot Ninjas were attack robots programmed by Miss Mirimoto and Sojo. One of the reasons for the martial arts tournament (other than bringing in puzzle-solving Mystery Inc.), was to analyze the styles of all the top martial arts competitors and program them into the robots to make them better fighters.

Physical Appearance
The robots wore ninja costumes and had glowing green eyes.

Powers and Abilities
They could hit, leap, shoot crossbows, and attack with chains.

Scooby-Doo! And The Samurai Sword
(Scooby-Doo! And The Samurai Sword)

Appearances

 * Scooby-Doo! And The Samurai Sword