You can not.
You can not change your Moshi Monsters username.
There isn't a code of the day on Moshi Monsters.
You can not change the color of the Volcano on Moshi Monsters.
You can not change your monster's name on Moshi Monsters.
You can not change your monster to a different one on Moshi Monsters.
You can get a 3 day Moshi Monsters membership card from a friend who buys a Moshi Monsters Gift Pack.
You can not change your color on Moshi Monsters if you are a free Basic member. ONLY paid members can change their colors on Moshi Monsters.
A Moshi is what the monsters are called: "Moshi Monsters". You can not catch a Moshi Monster, you adopt a Moshi Monster when you start your Moshi Monsters account. Choose carefully as you can not change your Moshi Monster once you have verified the account.
you have to be a moshi monsters member and if you are one you get it from horrods
Once you join Moshi Monsters and put a name in, you are unable to change it.
No, you will not lose your rooms if you change the style of your Moshi Monsters house.
Moshi Monsters only speak Moshi. There is no way to change their language.