You need to use certain seeds and they need to grow into certain colors, like Oddie (walking donut) you need a Yellow Star, Black Star, and a Purple Star.
Unlike others which says,"3 Stars, doesn't matter which color." which would be common.
no he is not a rare moshling :)
no he is just a rare moshling!
yes he is a rare moshling
Snookums is considered a rare moshling
furnando the moshling is ultra rare and the new rarest moshling of 2012
she's a rare moshling, and also she is number 72 (rather rare)
Yes, White Fang is a rare moshling.
yes burnie is a ultra rare moshling
Yes, Blingo is an Ultra Rare Moshling.
Yes. Shelby is an ultra rare moshling on moshi monsters.
yes blingo is a rare moshling. (p.s my name is bellasprout21)
Roxy the Moshling is listed as Ultra-Rare. Roxy was the first Secret Moshling to be released.