Naruto Shippuden: Ultimate Ninja Storm 2 Cheats :
ChAracter Selection Glitch
Once you start up a battle and you arrive at the Character Selection screen pick Karin. Then pick Taka Sasuke, (Akatsuki Sasuke) and then wait for the time limit to expire. After it does so the game will automatically pick Sasuke Chidori True Spear for you, and of course this is not something that you are allowed to do.