As far as I know, the famed McRib sandwich is so far unavailable in Korea, although some other "tropical" sort of possibly-pork product was available last week at a competing restaurant. This went by the name "Hawaiian Baby" and I can vouch for it indeed tasting like what a baby born of those islands might taste like.
That the McRib itself is nowhere to be found here is based both on my own personal observations and the McRib Locator app, the comments for which are particularly enlightening on the subject:
Love this. Never had one, but F^<# Michelle Osama and her food. Commie b!↑c#.
