http://insomnia.ac/reviews/ac/rastansagaii/review.php
This is on the Taito Legends 2 disk I bought last week (called Nastar it seems).
Covered things pretty well there. The music is astonishingly bad.
Seems there was a PS2/GC sequel. Trying to check Game Faq's for details but it's moving really slowing at the moment for some reason.