During the Loading screen if allocated enough time to move the right thumbstick enough in a circle. A Blue Chakara Ball will pop-out and if you notice your unfilled Stamina / Chakara Bar. It will refill a little about 25% worth everytime you do this. Between Loading screens with the Konoha Symboyl in the lower right corner.
Easier missions
Get your fox tail gauge up before every mission to make it easier for the boss or if your transporting goods or bad guys it might come in handy for those A or B rank missions.
Easy way to beat sasuke
When your going to fight sasuke at any time make sure you have a lot of rations and as soon as you hit him down keep using the power strike and it will knock him down use this over and over sometimes you will get the nine tailed foxs chakera use it then just use taijustu [keep attacking him]
Fun trick
I found this one after beating the game. First build up power in power strike (make sure you have the perfect strike skill chip) then hit the enemy with heavenwards kick wait until they are about to hit the ground then let go. I found this one effective against Saske but make sure you counter Saske's attack before doing this move.
Hinata's helper mission tip
When you go help hinata hyuuga with her mission. Naruto starts talking about a deserted village on a nice day that bothers him. When they investigate it you will have to fight a big fat guy with a giant bat. Before the mission go and fight around and get kunai knives. You can trade them for fire blossoms at the general store. use the fire blossoms when you fight the fight the fat guy but use the fire blossoms when you are close to him so they will work better.Also have a lot of medecine with you because the fat guy uses a lightning attack that you can't get away from and it takes away a lot of health, but he'll only do this when you get his health down a lot.
Hint
When fighting female ninjas, it is hard so use a lot of shadow clones to do the work for you.
Also right after the clones poof away the enemy is vulnerable to attacks for a very quick moment.
Hints
* You can't pause in mid air, so if you're about to recieve a death blow you can't heal yourself, so heal at about 25% health to not die.
* In your first 'B' ranked mission Sasuke gains a new power. It's a big one but he'll only ues it when he's weak, so watch out.
* You can't release a jutsu when down, dazed, or some in midair (ex. Naruto U Barrage).
* Always save after a mission or you can get a Game Over and go to the last saved point which could be really far back (I think everyone knows this from experience).
* female ninjas, monkeys, and male ninjas with hats can use dash but if you target them you will face them even when they do.
* The giant question mark one the map that sometimes apears is just a big battle with no reward and it's really hard to win. It's not worth it.
* The orange female ninjas have fire bombs wich can give away their location. Also, ninjas with hats can throw giant shuriken wich also give away their location, instead of searching for them just let them throw one, dodge it and follow where it came from lock on and beat 'um up.
* Also in the 'B' ranked mission, there's a big fight with about 20 guys. Use combos so when you fight saske you can use the nine tailed fox power(wich helps alot!)
More Hints
1. Keep an eye on the mini-radar on the right side of the screen. This indicator lets you know if enemies have moved behind Naruto and may be preparing an ambush from offscreen!
2. If the next available mission is a C or B rank mission but the one following that is a D rank mission, complete the D rank mission first. That way, Naruto is better prepared for greater challenges!
3. When exploring environments during a mission, look for treasure chests in out of the way places. Smash them open to obtain items or rare Skill Chips!
4. Use standard attacks to knock one or more enemies off their feet. While they recover, hold the R2 button to prepare a Power Strike attack. When the fallen enemy rises, release the R2 button to attack!
5. If you find yourself unable to defeat commonly encountered enemies, place more red Taijutsu Skill Chips on your Skill Plate. This should boost your attack power enough to even the odds!
6. If you find yourself running out of medicinal items, you should equip more blue Ninjutsu Skill Chips on your Skill Plate to boost your defense.
7. High on Shurikens, low on Medicines? Trade in 90 Shurikens for 6 Medicine B items at Emporium Karin's General Store. This is one of the better bargains in the shop. You can always obtain more Shurikens by defeating enemies!
8. Trying to trade Shurikens for a Medicine A? The best bargain is to trade 52 Shuriken for 13 3-Way Shurikens, and then trade these for a Medicine A.
9. Boss enemies have some super powerful jutsus! But while they prepare these attacks, they leave themselves open. Move in quickly and strike them while they prepare a jutsu to prevent their attack!
10. After you complete the game once, save your game and load it to start again. New and rewarding boss enemies appear on the Map Screen!