4th button changes the weapons from the other 2 ships, do it up!
I remember the hate this game used to get and how much people used to give me crap over liking it, the snobs couldn't believe that Cave acknowledge this sequel in their DOJ between stages screens where DOJ is considered episode 4.
DDPII is excellent, very cool and varied for different kinds of play. DFK Power Mode reminds me a lot of Energy Mode on DDPII.
Edit: I just noticed this was a stupid bump, sorry folks. Whomever got the game got a good deal.