these are all 5 of the tamagotchi codes used for the shop.when you get to the shop press A 3 times in 2 seconds and enter a code.
free hair potion = A,C,B,C,A,B,A,C
free love potion =B,C,B,A,C,A,B,A
free steak=B,A,C,B,C,A,C,B
free whole cake=A,B,B,A,C,B,C,C
free costume=C,B,A,A,C,A,B,C