There are two types of games that relate to this question for cheat codes. 1. Animal Crossing Calculator 2. Animal Crossing Wild World. Animal Crossing Calculator cheats If your sum contains only sequential digits (12345), when you press "=" Tom Nook will make a surprise appearance. If your sum contains all of the same digit (77777) then the effect will be the same, but with flowers instead of Nook. Sadly, it's still merely a calculator. Unlock Blue Feather: You must donate 200,000 Bells in Boondox. Unlock Green Feather: You must donate 10,000 Bells. Unlock Rock Money: