Kai/Weapons

Here is a collection of Kai's weapons in the Warriors series.

Fourth Weapon

 * Stage: Riot at Kasai-Ōsaki

Fifth Weapon

 * Stage: Assault on Oshi Castle

Big Star Weapons
Kai uses the following big star weapons in the game.
 * Adder
 * Python

Acquiring Mystic Weapon

 * Stage: Chapter 6
 * Requirements: Play on Hard or Shura Mode using the recommended team and have Kai get at least 300 kills while rescuing Mitsuhide, Ranmaru, Lady No, and Nobunaga, then defeat Zhou Tai in the northwestern garrison when it opens.  The "Treasure Found!" message should then appear.