How to beat UFO Lunatic:
1. First play on Easy. Byakuren argues that Youkai need protection from humans, while you take the opposite position, starting a battle over the differences in your respective belief systems.
2. Start up Lunatic and inevitably die OVER AND OVER on STAGE 1, how on earth is this game even POSSIBLE?
3. Your argument (see 1) has been proven correct! You have beaten Byakuren; also, she is still stick in the lower depths of Makai.
Congratulations- you're a great player!!