Carsinigin:How does this rule apply to Greek characters commonly used in math and science? Greek is not a supported language. Is my game going to be failed because I used an alpha or omega symbol?
I can't imagine they would be an issue. Chinese/Japanese Kanji characters are full-blown
words, while Greek characters are... letters. Unless you're spelling out Greek words with Greek letters, I don't think there's a problem.
Of course, I'm nobody official, so you should take what I say on the subject with a grain of salt.