well, this is how i mate both of my tamagotchies. i wait till they're adults and get trhe love potion from the shop codes, bcbc caba, and i give the love potion to both of them. now, i quickly connect them both. no matter what you press, game, present or visit. the male tamagotchi will come over to the female tamagotchi. both screens will turn black and a few seconds later, the fire works will explode. the male would have come back to it's screen, and in the female's side to babies will be there with her. one baby will float up and go with the male. if you try this before they are adults for 24 hours old, the male will still go to the females side but it will not have the baby, but, if you connect them again when they are 24 hours old, they will have the baby.