The biggest cheat in this game is the basic shop in town. When you go in there are 6 items inside and they are random. If you pick one up then while staying inside you go to title then reload, the 6 items are refreshed. This allows you to exit any time. As long as there are 6 payable items on the ground the exit is not blocked. Funny enough this is a built in cheat in the game, and not a manipulation of the save files. Get a weapon and shield, upgrade them, and ignore all the herbs. Anything that you use while in town has no effect on your dungeon run as long as it is manipulating your character. If it is manipulating your character's items than it carries over into the dungeon run. The other starting cheat is to go into the 1st floor and find the wisp item and die over and over again. You can level up your spirit level a few times and then go do the item shop cheat. For the spirit level cheat be careful as there is traps that will drop you to the second level and not allow you to restart your day.