I haven't seen/heard it yet, but I also haven't been looking for it. So if you happen to see it show up during a match vid just link it. My Japanese isn't all that great, but since this game is so anime I can decipher a fair bit of generic common words/phrases.
EDIT: Plus there are plenty of users that are way more proficient in the language than I am around here, so even if I can't get it, someone else should be able to.