Honestly, I have no idea why not a single solitary person has shown anyone this tip.
An easy way to get some ryo, is to head down to Tanzaku Town and head to the Pachinko Parlor and either play on (These are the one's that win alot) "Machine No. 1 of 'The Leaf Story'" or "Machine No. 2 of 'Three-way Deadlock 2.'"
P.S. Those are Slot machines. The Leaf Story has their screen set as 3x3 squares, meaning you can get matches diagonally and horizontally (They don't allow vertically for some reason). Three-way Deadlock 2 is the same as the slot machine in Ultimate Ninja 2. The only difference between them is the pictures and the music.
PSS. On BOTH machines, 1 medal gives you 20 ryo. So get 5000 medals, and you get yourself 100,000 ryo on the spot. It takes about 20 min. Or less to get to only 5000 medals. I think that once, I got to 9,999 or 999,999 medals, but I'm not entirely sure.
The Secret Scrolls that you can find in every stage have a secret (duh!). You can learn about their location from 'The Leaf Story' slot game. If you get the Naruto-Faced Jackpot (or the Naruto Raceway Minigame, as I like to call it), if you make your way to the very end, and past the goal, there will be three chests. I'm not sure, but so far I've gone through it 7 times, and I got thrown in a pit on the last triangle path. Also (still not sure), I think that the first 10 times that you go through the minigame, you get these things called 'The Secret Hint Scrolls'. I've gotten 7 of them, one for each time I reached the chests. I think there are 10 scrolls in all, maybe more. They have hints to The Secret Scroll locations and how you find them. Ex. "Ichiraku, all broken things... All Great Stone Faces..." is on the Secrent Hint Scroll (1). Meaning, break all items on the Ichiraku Ramen Shop stage and you will get a scroll. Vandalize all of the Great Stone Faces on the Hokage Great Stone Faces stage, and you will get yet another scroll.
Lastly, If you've beaten the game, or are skilled enough to take down the hardest A-Rank Mission 'Tested Courage' and win a hard battle against an "Itachi", then, if you don't have 1,000 ryo to get 50 medals to start you off in the slot machines (which a little over 1/2 the time does the trick), then you can do the Tested Courage mission to get 30,000 ryo and alot of exp points. After the mission, you have a chance to pick up 38 scrolls.
And one last way to get ryo: Try to get as many of the ULT Items from the General Store (Near the South Gate of The Village Hidden in the Leaves, south-west part of map, between to white and blue flags, opposite side of the Nindo) until you buy all of it's items (I'd wait till after beating story mode, though). After you buy all of the General Store's items, they let you trade in Scrolls for Ryo. They buy the scrolls at 100 ryo each. So if you get 38 scrolls, and sell them at the store immediately afterwards, you get 3,800 ryo.
To defeat Garra, you have to run under him when the monster is using his sand blows. So when the monster trys to hitt you with his hand jump away from him. Then run back under him and throw your weapons by pressing square. After that keep on tring it. Then it willl hurt Garra, so look at your health bar and make sure that your is higher than Garra's to defeat him, but your health dosen't have to be in the green section. Just make sure your health is higer than Garra's. You can't make Garra lose all his health it just has to be lower than your's. Believe me I was mad that I couldn't defeat him. So just use use these helpfull steps to defeat him and hopefully you can do this untill times up. So just keep trying and do your best.
Step 1) At the start of the match, run under the creature's head. Step 2) Press double X to do the dash up to the enemy's head Step 3) Keep pressing O to do air melee attacks right under your opponent Final step) Repeat process. If you can do the trick fast enough, you can beat the summoner without getting a single hit and a win!
Ok, In order to beat someone in 9 or less seconds(If you've been playing for a while you should know how to do it) you have to immediately go into berserk mode and relentlessly attack. Dont let your guard down for one moment(unless you can't help it) once their life is about half way down collect chakra until you can use your ultimate jutsu. After you use it you should go into a special mode(ill write on this later) and then you do the same as before. Attack, attack, attack!!! Oh and you have to be at least a level 8 to do this. I have done this. And you get sooooooooooo many rewards for it. Well got 2 run. Hope I helped all you first timers out there.
You have to beat heros history and ultimate contest. Go to ultimate contest and go to the academy and talk to moegi and udon, they will challenge you to a trivia contest, once you win, go to the resturant nexto ichiraku, and ebisu will be there. Talk to him, you will be challenged to another trivia contest. After you win you will unlock the 1st and 2nd hokages. Then you have to go to the man nexto ichiraku, who sells items and buy everything he has. Now walk around, go to the blue dots (BLUE dots, not green or any other color) on your map and talk to people. You will give these people the items and "go on dates" with them (girls), and just eat or talk with guys (in my case it was sakura first). You have to go to the center of the leaf village (thats were most of the people will end up being) traning field, forest of death, and hotsprings, to find people that you will date, then go back to the center of the village to date them. Keep doing this (you will go on ALOT of dates and it will take alot of time), eventually one of the people you meet is Hanabi, you will talk to her once, talk to her again and give her some money, then talk to her again and go on a date with her. After that you will have unlocked hanabi. After you unlock her it says congratulations you have unlocked all 41 chracters!!, as a reward we give you the "yellow flash" (4th hokage). And thats it!!