The passwords are confusing, whatever the username on your tamagotchi v3 is, the codes will only work if you log in on TamaTown with the exact name. So if I had my version 3 username as "Zack" And I signed on TamaTown as "Zac" the passwords would not work because the username's are not the same. Understand? So if your friends said "I have all the codes and they work!" They wouldn't work on your Tama because you probly don't have the same username as your friends name.
Young_Mimitchi_Lover