Note: This trick requires four controllers. Make new characters, but do not save with them. Go to any Boss that you can easily defeat, such as the dragon. Have other characters just stand there or draw the Boss' attention away from you. Hammer away at the boss. When those idle characters die, do not touch that person's controller. When you finish the Boss, you will get four times the money you would normally get in one player mode. Use a small portion of this to fill up your health, and the rest to increase your stats. Repeat as needed until your stats are at maximum.
Enable the "10,000 gold per level" code. This will give you 10,000 gold each time you are in the Tower. After every level when you return to the tower, you will gain 10,000 gold for the next level. While in the tower, pause the game play and go to the shop. You should have 10,000 gold. Go to the bottom and spend it all on stats. Then select "Exit" and you will return to the tower. When you return, you will once again have 10,000 gold. Return to the shop and keep buying stats. Repeat this until you have full stats.
Michael Chisholm.