Yeah, I enjoy the PE movie, but I also understand it isn't for everyone, especially if they just want so see waifu Aya being awesome (which I did, but I still enjoyed the movie).
I only ever got to the Centipede boss thing on the second disc. I was playing in Japanese, so a lot of finer points were lost to me while playing through. One of those points was the whole weapon upgrading thing. I never knew about it so I just played through the game by dumping worse stat weapons for better stat weapons like a traditional RPG. I told that to my friends who had beaten the US version since I was having a hard time with the boss and they were like, "How da fuq did you get that far without upgrading ANY weapons?!"
So, if you're planning on playing PE, remember; upgrade your weapons, don't toss that stuff out like me! ;D
Also Aya Brea has seriously been one of my earliest VG crushes, other girls just never did it for me before Aya came into my life. :-[
(http://www.itsuki.altervista.org/wallpapers/1024x768/videogiochi/parasite_eve.jpg)
:P