There doesn't seem to be an option for the devil trigger. Or maybe I'm missing something? You don't get the devil trigger until a little ways into the game so that might explain why it's not available. I have a saved game with the trigger available located here: file removed -- veggy/brewers, get your own savegames, I think we've helped you enough with your trainers
There are also some more items added to the shop that you could add max out codes if you want to.
[Edited by Gwaythiel, 7/9/2008 8:18:47 AM]
[Edited by moderator PWizard, 7/10/2008 8:13:54 AM]
Also there is a bit of a problem with one cheat. If you max out the blue orbs then you can't upgrade your health unless you located those orbs when playing. Blue Orbs take effect when you buy them so having 99 of them prevents you from upgrading.