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If you buy a game on the PSN, you can delete it whenever you want - all you need to do to regain it is go back on the PSN and redownload it for free.
A PlayStation Network Card Code is the code on the back of a card that has PSN money on it. You can use it to buy games or other things on PSN.
You need a PSN account before you can download games from the PSN.
There's no Naruto games on the PSN store
Some, as most you cant buy through psn, only like mini games
Games are linked to the PSN account so that's not possible.
No the PSN is down world wide
Yes, the PSP 3000 has a PSN icon on the XMB. From there it can access the PSN, to purchase and download games.
You can't run unsigned code on a PSVita, that means you need to download games from the PSN.
Well you need PSN credit, and there are two ways to do this: 1. Go to a place where they sell PSN cards (GameStop), scratch off the bottom back of the card with a coin, go to PSN, on the top right of the PSN click redeem codes, input the code that the card you bought has and whatever you payed for the card you will have on PSN. 2. You can pay by credit card.
To access the Japanese PSN, you need to register an account on PC, on the Japanese PSN site, and connect to the PSN on the PSP with that account.
Yes, it works on PSN games.