Which vocal tracks were actually in the games they represented?

[johnboy3434]

I read that Rockman ZX's theme, "Asayake", isn't even in the game itself. Is this true of any of the other games with vocal themes?

[Gaia]

Well, mostly the US ports, sans Zero Collection's port of Z4. We got a bit of Freesia there. It's also been common practice throughout the series, too. It's why you don't hear Electrical Communication in the US version of Rockman 8 nor (a sped up version of) One More Time in X3's PS1 port in the English speaking countries.

[johnboy3434]

Hmm... so it's only the US ports that remove the themes? Sorry, I should have made my question more clear: do any of the Japanese versions not include the themes? Basically, I'm gathering up a Mega Man music collection, but I'm only including tracks that are actually in the games because I'm OCD like that. I'm also excluding arranged music because I'm a dumb purist. And yes, I know that I'm cheating myself out of the ZX series' music by doing that (not to mention Zero 4 and Star Force 3).