Beast Boy undergoes training to become a ninja. CN GAMES: SUBSCRIBE:MORE: About .\rbr\rbrThe Titan ninjas teach Beast Boy the art of the ninja. Welcome to CartoonWorld! Enjoy clips and eps of cartoons from: Bunnicula, Powerpuff Girls, Teen .\rbr\rbrTeen Titans Go S3E38 The Art of Ninjutsu Part 03Ep.\rbr\rbrTV PG.\rbr\rbrSubject.