Epic battles against the ninja clans are waiting for you in the new online game Katana. Before you will appear on the screen in which your hero will be located. It will be armed with throwing stars of shurikens and katana. By controlling the actions of the character, you will move forward along the location. A ninja will constantly attack you. You are striking katana or throwing shurikens in them, you will destroy all your opponents. For each defeated enemy, Katana will give you glasses in the game.