It’s thirteen minutes of Geometry War: Retro Evolved 2’s awesome soundtrack remixed by a fellow named “Chris Chudley” (who did a lot of work in Bizarre Creation’s other works as well). The mix is called “46860 Choices” and was made publicly available from the fine folks at Bizarre Creations.
You can download it from their post or from the download link below.
Geometry Wars: Retro Evolved 2 Megamix: 46860 Choices (17.9 MiB, 997 hits)
I absolutely enjoyed the hell out of this remix.