The first PS3 game that i would do cheat codes for is:
final fantasy 13.
The first cheat code is replacing any battle ability like this:
Any ability magic that you choose and use is always replaced by doom or a modified physical attack with 9999999 damage.
This is the ultimate battle cheat code.
The next cheat code is speeding up the doom counter to quickly reach zero = one hit kill.
The next cheat code is modifying any enemy/boss magics to always be deprotect.
For one example when you fight against a gestalt. That enemy casts doom magic at the start of the battle.
And i have enabled enemy magic replacer to force any enemy/boss magic to always be deprotect instead.
Now no enemy or boss can't kill you unless they imitate adamanchelid forelegs trample on the ground.
Which is attack without display name.
The next cheat code is modifying twenty-sided die equipment item to always nullify damage taken on player.
Then both enemies and bosses will make zero damage on you. It's like god mode.
The next cheat code is modifying randomness of obtaining both common and rare items to always get it.
Replacing random with 100% instant.
The next cheat code resets a list of chosed events like using a time machine to only beat a one time boss unlimited times.
The next cheat code replaces any save station by a chosen one. You can the save game in one location. And then when you
load that save file. You are teleported to another save station location. This enables sequence breaking.