Saw this are Carrefour and hey... ninjas! Cool ninja! In Red! The official marketing tag line is pretty cheezy. Bonezai indeed! On to the pictures!
Here is the bamboo forest ambush prop. You can see the Golden Scythe on the right. That red tab would have given away the trap easily before Ninja Kai can fly.
Here's how the ambush works. In reality, flight distance is limited and Kai will tumble all over the place.
Ambush sequence! You can see Kai emerging from the bamboo trees and hacking Bonezai to a million pieces. Zai removes his ninja mask and you can see a scar right across his left eye.