Uploaded October 2023 | Updated September 2026, 2 weeks ago

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Included with the many music files in Sonic Superstars, are unused versions of some themes.

These are probably the Sonic Orion versions of the tracks, composed and arranged by Jun Senoue, before the other composers joined the team and rearranged the songs. Here's Bridge Island Zone. Apparently no Act 2 variations were included in that version.