2258 Ninja Ambush

2258 Ninja Ambush is a set that was released in January 2011'''. It includes Kai, and Bonezai. '''The set also includes a bamboo brush area that can open and launch Kai forward and also includes a holder for the Scythe of Quakes.

Lego.com Description
Ambush the evil skeleton soldier and protect the golden scythe!

As part of his training to become the Spinjitzu Master of Fire, Kai is sent into the bamboo forest by Sensei Wu to protect the Golden Scythe. Hit the button to launch a surprise attack on Bonezai before he steals it! Set includes 2 minifigures and 3 weapons.
 * Includes 2 minifigures: Kai and Bonezai
 * Features golden scythe, black sword and bone weapons
 * Set measures over 2” (5cm) tall