Well it really depends on what game it is and if the cheat code is still new then it would be better as some cheats can be not ever used again when it is old. They should work and would help you alot...
First, you go to expert cheat mode. Then, you select your game (don't press x). Press the right directional button on the selected game. Activate the cheats that you want. Press triangle twice to get...
1. Try www.supercheats.com they have better cheats.
2. Then click on your game console like ds or ps2.
3. Pick the game you want cheats for then look for action replay cheats towards the top near...