Hit [Shift] + D and enter the following cheats for the 
desired effect.

Code                 Effect
---------------------------------------------------
leetbuffz          - Cast holy shield on your party.
editor             - Enable editing of Stats / Spells.
iwanttobestronger  - Give experience points.
ouchouchouch       - Heals all party members.
imdrained          - Replenish magic power.
iampoor            - Give you 500 coin.
showmeall          - Show All NPC on the Map.
dontshowmeall      - Removes the NPCs from the minimap.