I've been searching for little-known Japanese and Chinese ninja films/cartoons. The more insane and silly, the better. Anyone know any good titles? And where to download or order some?

Watari Ninja Boy
http://www.youtube.com/watch?v=AiTTQ5EW0Ik

Kiko Boy Ninja
http://www.youtube.com/watch?v=W8kcCjG68x0

Shonen Ninja Kanze no Fujimaru
http://www.youtube.com/watch?v=Ft8-gP2XCdo