Also, when do the score extends occur? Because I died with a score of 6.5 million - I assume that's pretty pathetic, although I have tried my best to play for score.
6.5m is fine considering you've only just started and are concentrating on survival.
Galuda's extends are at 4m and 14m, and there's a hidden one at the end of Stage 3 you get by shooting a black orb near the end of the ship in Kakusei mode.
As for controllers... I just stick with the default pads for both PS2 and 360. The PS2 d-pad isn't as nice as the 360 one, but both can be hugely improved with the use of friction tape. Even without that, though, they're pretty much fine after some getting used to; I managed the DOJ 1-all on the PS2 controller quite a while ago, and if it's accurate enough for that it's accurate enough for Galuda. :V
On a similar note, just tried Galuda again, and got a 3 miss 1cc. Could have been two miss had I not died with a full bomb stock on the final attack. :derp: Ah well, no missing to the clones was nice.