that's a question for scientists but they haven't found any monsters or anything like that sort so far.
in the under ground disco
press up +trangle
Its on the ground near the Candy Cane Cave.
you click y0ur tresure chest and drag your floor
you get the vine off the ground
slime? they are only in selected chunks and only spawn deep under ground.
To PROTECT you from the evil monsters that come through the cracks of hell beneath the ground.
You go to Ooh La Lane and it will be on the ground of where the main street sign is, next to the art gallery.
attack monsters and sword in ground, hit genesis with blizzaga with no sword in ground, heal and restore magic as needed, WIN. Signed, Phoenix
short version - kill somoned monsters, attack sword in ground, sword not in ground-blizzaga. (heal and restore magic when needed.) Signed, Phoenix
You will find the secret code box on the sign in page on the Moshi Monsters website.
It can only trigger once per turn, but if multiple monsters are summoned simultaneously by one single source controlled by the opponent, all of them will be switched to defence mode.