It's a bit insulting to not call timed cues "full length compositions". Composers work hard to write music that lasts a specific amount of time and still sound good. It's hardly something worthly or relegating to second place just because they are short.
That said, a perfect example of what you're looking for, while not anime, is Godzilla vs Biollante:
https://vgmdb.net/album/18049