Scooby-Doo and the Samurai Sword (2009)

Brian Cox, Grey Griffin, Kevin Michael Richardson, Frank Welker

The Mystery Inc. gang travel to Japan for Daphne's martial arts tournament, and stumble upon the mystery of the Black Samurai. The only way to defeat him is by solving riddles and fighting ninjas, and the ones you'd least expect to end up saving the day. ?khalidaun