How do you pay for psp go games

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.