Turn on your Ds. Then go to settings. Change date to January 1,2000. Then hit confirm. Turn off Your DS and turn it back on. Go to Animal Crossing: Wild World. Click on your characterand go to town hall. Then go to your access account and deposit 50,000 or more. Save your game and turn it off. Then turn it on and go to settings again. Change your date to January 1, 2099 and hit confirm. Turn off your DS and turn it on. Go to Animal Crossing: Wild World and click on your character. Go to your mailbox and there will be a letter saying that you got 99,999 bells for interest. THIS CAN BE DONE OVER AND OVER.