Yassai Ninja is a Third Person 3D hack and slash game, which allow you to control two characters in different moments of the story to going forward. multiplayer game to play with friends. Depending on which character are you playing with, the game can be really different, showing parts where you only can reach with one character and his weapons. Each character will gain XP by his fights and this will unblock different fight moves, combos and special abilities. Source: The Developer Website.