I've since changed Spark Mandriller to Setsuo, as it sounds more like it belongs with that set of songs. Also added Boss 1, Boss 2, Stage Select 2, Sigma Stage 2, Sigma Stage 4, Sigma Rebirth, Sigma 2nd and Cast Roll, making the count 22-5-2-2-2.
Looks good to me.
X3 Arrange Version (Lord help me)
NOTE: These are UNOFFICIAL [Bold = Confirmed, Italics = Implied]
Toshihiko Horiyama: Opening, Title, Opening Stage, Pass Word, Stage Select 1, Explose Horneck Stage, Frozen Buffalio Stage, Gravity Beetbood Stage, Acid Seaforce Stage, Electro Namazuros Stage, Scissors Shrimper Stage, Vava Stage, Boss 1, Boss 2, Stage Clear, Stage Select 2, Doppler Stage 1, Doppler Stage 2, Doppler Stage Boss, Sigma 1st, Sigma 2nd, Doppler Demo, Megaman X3 Opening Theme, Megaman X3 Ending Theme ---> Sound more like Toshihiko's than Shusaku's
Shusaku Uchiyama: Opening Stage Demo, Explose Horneck Demo, Frozen Buffalio Demo, Gravity Beetbood Demo, Acid Seaforce Demo, Electro Namazuros Demo, Scissors Shrimper Demo, Screw Masaider Demo, Shining Tigerd Demo, Demo -->New compositions + Shusaku was only one known prior to album release = Logical explanation
Yoshino Aoki: Zero, Screw Masaider Stage, Shining Tigerd Stage, Dr. Cain Demo, Dr. Right Demo, Ending 2, Cast Roll
Makoto Tomozawa: Ending 1
Opening: drums, flute
Title: guitar wail, drum'n'bass, cymbals
Pass Word: percussion, vibes
Opening Stage: bleeps, heavy percussion, background wails, synthesizer, piano --->Yoshino? Makoto?
Zero: clarinet, drum'n'bass, low synthesizer, cymbals
Stage Select 1: heavy bass, heavy synthesizer
Explose Horneck Stage: heavy bass, (unique) bells, vibes, trumpet, (unique) synthesizer
Frozen Buffalio Stage: slower; low guitar, bells, vibes, percussion, environmental, horn
Gravity Beetbood Stage: vibes, guitar, percussion, high-pitched background
Acid Seaforce Stage: jazzy guitar, drum'n'bass, vibes, high-pitched background melody
Electro Namazuros Stage: guitar, high-pitched background, bells, percussion--->getting an X4 vibe from this one (Toshihiko Horiyama)
Scissors Shrimper Stage: heavy guitar and bass; synth background
Screw Masaider Stage: percussion, techno, vibes, low guitar
Shining Tigerd Stage: low guitar, vibes, environmental, bells
Vava Stage: vibes, drum'n'bass, techno, bells --->X4 Vibe
Boss 1: heavy percussion, techno, guitar
Boss 2: heavy guitar, violin (high-pitched background), cymbals
Stage Clear: Percussion, low bass, whaling guitar
Stage Select 2: Percussion, cymbals, ominous background, synthesizer
Doppler Stage 1: Cymbals, synthesizer, low guitar, percussion
Doppler Stage 2: Techno, ominous background, guitar wails, "choir," piano, violin ----> Makoto? Yoshino?
Doppler Stage Boss: Cymbals, percussion, ominous background, vibes
Sigma 1st: heavy percussion, techno
Sigma 2nd: heavy percussion, panflute, synthesizer
Doppler Demo: Ominous background, heavy percussion, cymbals
Dr. Cain Demo: Low guitar, "xylophone" background, trumpets
Dr. Right Demo: Techno
Ending 1: piano, bells, low trumpet/woodwind, synthesizer--->Makoto
Ending 2: percussion, trumpet, low guitar, cymbals
Cast Roll: drum'n'bass, cymbals, trumpets, high-pitched background
ANOTHER EDIT: Previously, Brad discussed that the Saturn version of Eregion had a special intro. Well's here's the others like it:
Frost Kibatodos Stage 2 (special intro like Eregion)
http://www.youtube.com/watch?v=106jztmmEnQ at 5:34
Stage Select 2 (same melody, but the "squirming sound" is heard at different parts during the first half of the track.)
http://www.youtube.com/watch?v=EmwLUjhZ0Zw at 4:17
http://www.youtube.com/watch?v=QJjTi_mDDeI -----> compare to start of this