TO ENTER CODES GO TO YOUR CHARACTER SELECTION SCREEN AND CLICK ON SECRET CODES.
(BY THE WAY THE CODES LULLABY, AANG, KATARA, ZUKO, AND TOPH ARE BULL PUCKY SO 
DONT BOTHER WITH THEM)

boomerang          : 500 gold
mother             : unlocks 500 gold
dragon             : unlocks 500 gold
dragon dance       : unlocks 500 gold
dance of the dragon: unlocks 500 gold
june               : unlocks 500 gold
mom                : unlocks 500 gold
mouth              : unlocks 500 gold
gondola            : unlocks 500 gold
mai                : unlocks 500 gold
western air temple : unlocks 500 gold
painted lady       : unlocks Katara
breath of fire     : unlocks Zuko
Metal Bending      : unlocks Toph
seventh chakra     : unlocks aang