If you want to make sure that your PSN game allows you to cross all levels armed with all sorts of gems and resources required for the same without spending money time and again, then look into going for free psn codes which should enable you to take care of things in the easiest possible manner. This is absolutely important for anyone looking to make things work for them. PSN is a popular game and hence this works to your advantage. Firstly, because it is popular and there are many people wanting to play it, there are ways to help you make it possible to achieve your targets within the game.
I am referring to the various games hacks and cheats available online that you could benefit from, in your quest to make things easier to achieve. You do need to stay focused so you only take appropriate course of action by doing the right thing from the start. You must not waste time on insignificant stuff otherwise you will end up regretting your decision. You sure have options and if you use them wisely, you will always be making the right decision. These things need to be discussed in greater detail for which I believe gaming forums would be ideal.