During gameplay hold L1 + R1 and press Start, Up (D-pad), Start, Down (D-pad). If You should see the debug menu appear. Enter the following codes (without the quotes)for the desired effect. Entering the codes will disables Trophies.
Activation Code: Enter 'TWOWORLDSCHEATS'
Set Attributes to 1,000: Enter 'ec.dbg iamcheater'
Unlock ALL Skills: Enter 'ec.dbg skills'
Add Experience Points: Enter 'AddExperiencePoints X' (where X is a number between 0 and 255)
Add Gold: Enter 'Addgold X' (where X is a number between 0 and 255)
Add Skill Points: Enter 'AddSkillPoints X' (where X is a number between 0 and 255)
God Mode: Enter 'GOD X' (toggle God mode, where X is a number is 0 or 1)
During any point of Single-Player mode hold down the L1 and R1 buttons. Now hold 'Start' and press 'Up' on the D-pad and release 'Start' before holding it down again and pressing 'Down' on the D-pad. If you have entered the code correctly a text box will appear that allows you to enter console commands.