Space Channel 5 ... Trying to build a complete collection

[twistedsymphony]

Space Channel 5 Part 2 is one of my all time favorite games...

I played it on the Dreamcast back in the day and loved it...

I'm considering building a Complete collection of all Game Variations from all regions, including all official Audio discs...

So far this is what I know of:

Game Discs:
Space Channel 5 (Dreamcast) [NTSC]
Space Channel 5 (Dreamcast) [NTSC-J]
Space Channel 5 (Dreamcast) [PAL]
Space Channel 5 (PS2) [NTSC-J]
Space Channel 5 (PS2) [PAL]
Space Channel 5 (promo) (PS2) [PAL]
Space Channel 5 Dreamcast Collection (Dreamcast) [NTSC-J]
Space Channel 5 MIL-CD (Dreamcast) [NTSC-J]
Space Channel 5 Special Edition (PS2) [NTSC]

Space Channel 5 Part 2 (Dreamcast) [NTSC-J]
Space Channel 5 Part 2 (PS2) [NTSC-J]
Space Channel 5 Part 2 (PS2) [PAL] (Australian/Europe/German/UK)
Space Channel 5 Part 2 Special Package (Dreamcast) [NTSC-J]
Space Channel 5 Part 2 The Best (PS2) [NTSC-J]
Dreamcast Collection (Xbox 360) [NTSC]
Dreamcast Collection (Xbox 360) [PAL]
Dreamcast Collection (PC-DVD) (Australian/Europe/German)

Space Channel 5 Ulala's Cosmic Attack (GBA) [NTSC]
Space Channel 5 Ulala's Cosmic Attack (GBA) [PAL]

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Audio CDS:
Space Channel 5 Original Soundtrack (Japan) (slip cover with white backround with "5" logo in the center)
Space Channel 5 Remix Tracks (Japan) (digi-pak silver background with Ulala's face)
Space Channel 5 Planet Dance Sampler (USA) (rainbow background with Ulala leaning over)

Space Channel 5 Part 2 Can't Stop Remix (Japan) (plue and pink with Ulala in spy outfit)
Space Channel 5 Part 2 Non Stop Mega Mix (Japan) (pink background with Ulala's face)
Space Channel 5 Part 2 Soundtrack Vol CHU (Japan) (white background with block graphic and Ulala laying down)
Space Channel 5 Part 2 Soundtrack Vol HEY (Japan) (white background with block graphic and Ulala, Pine and Pudding)

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There are a number of what seem to be "holes" for instance
-Was the Dreamcast collection for Xbox 360 released in Japan?
-Part 2 released in PAL territories at all?
-Was the GBA "Cosmic Attack" game released in Japan?

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*I previously thought that Part 2 was never released in any english speaking countries and then this picture turned my world upside down:


UPDATE: This is a fake release made by a fan, not a real edition.

Any information anyone can give me would be greatly appreciated