I dunno if it was a bad translation or an attempt at humor, but the fact that one of the Final Fantasy XII "hunts" (optional boss side game) is called a "Ring Wyrm" struck me as just bizarre.  More or less bizarre that the "White Mousse" I'd just killed previously is hard to say. 

The whole mechanic of hunts, and sidequests in FFXII in general is kind of odd.  They are presented with a lot less production quality than I would have thought.  You can easily miss a TON of content in the game that way, and there's a lot of stuff in the hunts and side missions that are, as far as I can tell, pretty much impossible without a strategy guide.  That's a sign of very lazy design, IMO, but fortunately the overall Final Fantasy production values can still carry it. 

Perhaps even odder, the game is tuned to assume you do a healthy proportion of these impossible-to-fnd side missions, or just spend time mindlessly leveling up.  In general FFXII has a lot more busy-work than the previous entries in the series, which is an unfortunate development.  I thought FFX did a pretty stellar job of balancing the two, and it's a shame to see the series move backwards.