Kingdom Hearts: Birth By Sleep is yet another title that blows past our tag limit (not suprising given the series' penchant for long/weird naming). I'd asked it last year and forgot to ask another (gaming ADD hit again...) so it became untagged.
We have hardly any Kingdom Hearts questions here, likely because most of the main releases came out before the site's existence. The next title will be Kingdom Hearts 3D: Dream Drop Distance in spring 2012, so we should probably decide on a convention for abbreviation before then.
So should we go for:
kingdom-hearts-bbs with the full title in the tag wiki, like we do with other games with potentially unclear abbrevations? This is what I'd previously tagged it with before.
kh-birth-by-sleep - I'm always loathe to start off with the abbreviations for series whose abbreviations aren't as strong as stuff like Prince of Persia's or Modern Warfare's. I suppose we could alleviate that with kingdom-hearts-bbs as a synonym?