Your tamagotchi needs to be an adult to use the love potion (honey). Your tamagotchi can use the ball at all ages. Your tamagotchi can use the boombox and gramaphone at all ages. Your tamagotchi needs to be a teen and older to use the building blocks. The lion doll and action figure can be used by tamagotchis of all ages. All the rest of the items can be used only if your tamagotchi is an adult.
