To unlock anbu kakashi you first have to unlock bando to unlock bando unlock and buy every single character and all the stuff in the shop accept for bando and anbu kakashi then get 70'000 and you will be able to buy bando for 35'000 then to buy anbu kakashi you have to get 20% in every single characters mission list and 40% of kakashi's mission list and then fight might guy in rival battle the harder one and get head ninja or hokage then face him again this time you will have to face anbu kakashi get a chunin or higher and then you will be able to buy anbu kakashi for 100'000
After you buy sasuke and attack power 4 from the shop change your attack power to 4 and difficulty to 1. Then go to single survival and select sasuke. Next uses strong attack(a button) nonstop when you get closer to round 20 it gets harder so you might have to use substitution. Hope the hint helps.
After beating story mode, purchase power level 4, kisame hoshigaki, and survival mode. Go to options and use power level 4. Go to survival mode and use kisame. Use his strong attack non-stop. And you will kill foe in 2 combos!!!
Go to the one player missions, and select Deidara. Go to the B ranked combo challenge. When you start, use the weak combo. Do that until your chakra is full. When you use the secret move, make sure you hit all of the things that pop up on the screen, telling you what to do with the Wii remote and nunchuck. If you do it right, you will do a 34 or 35 combo. Success! You should get around 800-900 ryo. Do it a lot, and you can get around 5000 ryo in about 6 minutes!