All of them are rare! You always get stuff that's not in the markets.
Other users have said:
Secret codes are supplied with physical items such as Moshi Monsters books, trading cards, gift packs and toys. They can sometimes also be found on the Daily Growl. Most codes are unique, meaning they can only be used once.
They can be found with many Moshi Monsters related items. You can get two codes in every issue of the Moshi Monsters Magazine, one on the back of every Moshi Monsters MASH Up Trading Card game map card and just general things to do with Moshi Monsters.
i dont think anybody knows ALL the mopod codes, because you have to buy them. they are very rare.
ALL of the codes are rare!
Unless you know how many of each kind of MoPod was produced and sold, it would be difficult to give a definite answer.
Codes for moshi monsters are for getting stuff like food, rare posters and other cool things like that. You can go on the web and find them or you can purchase items from moshi monsters. The codes are reusable. Which means (If your a kid) that you can reuse the exact code for at least a lot of times. Be careful, if you are searching on the internet for codes, make sure that they are the real codes.
The rare codes are the ones which can only be used one time by one Moshi Monster member. The codes for the seeds to get Dustbin Beaver, Blingo, and Nipper are probably the most rare since you have to buy an item or subscribe to the Moshi Mag in order to get the code for the seed.
You can get moshling codes in various places. For the really rare moshlings, the Daily Growl is a good source of information. You can also get moshling codes by purchasing Moshi Monsters items and magazines. You can also get some rare moshlings by completing Super Moshi Missions.
I dont' think you get anything because there is no such a thing as rare food on moshi monsters
Yes, Cherry Bomb the Baby Boomer is a Rare moshling on Moshi Monsters.
Only the gold Shrewman Moshi Monsters figure toy is rare.
There is no MoPod code for Roxy on Moshi Monsters.There is, however, a code for Roxy which is found in the book, "Moshi Monsters: Moshling Collectors Guide".101 Roxy the Precious Prism [Secrets] Ultra Rare: Radiant Roxy Rose, any flower, any flowerTo get the Radiant Roxy Rose seed, enter HOBBIDIDANCE (in all uppercase) as the secret code on the login screen. This code (like all other codes) can only be used once. Then plant the Radiant Roxy Rose, any seed, any seed.
Gingersnap is a common Moshling on Moshi Monsters.
just rare.