No, at least not in R/B/Y/G/S/C/R/S/E. I dunno if they did some corruption in D/P to make this happen.
NO there is NO SUCH THING as a super rare candy. Sorry if you're in tears right now. BUT there is such thing as a rare candy.
with some AR codes.
http://www.serebii.net/platinum/items.shtml and look up rare candy {by the way its rare candy not rare candy barb1 of the mall i think
Rare Candy is an item that increases any one chosen Pokemon's level by 1. Note: Each Rare Candy can only be used once.
You battle or use a rare candy
go out into the see and look for a Pokemon that looks like a backward B make sure rare candy is the sixth item in your pack. make the b faint and you'll get 98 rare candys
There is no stone but you can use a Rare Candy. That will make it go up 1 level, or you can get a Super Rare Candy. 1 in 100 games of Diamond, Pearl and Platinum have it replaced instead of the normal Rare Candy. Super Rare Candies make your Pokemon level 100 straight away, no matter what level they were on before hand.
You can't buy Rare Candy.
Yes there is rare candy in pearl
When used on a pokemon it will boost its level and make it stronger.
well if you don't want the bad egg or the rare candy then release the egg with the rare candy or if you want to keep the rare candy take the rare candy away from the egg and release the egg (i don't think you can get a bad egg but if you get one follow this answer
you find rare candy in the random pokeballs