A Tale of Two Hedgehogs Part 6-The Hidden Base of Sand Sanctuary

We've reached the halfway point of Superstars and the end of Megamix Mania. Let's get busy!
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Timestamps:
Sonic Superstars
0:00 Sand Sanctuary Act 1
2:24: Special Stage #3
10:36 Sand Sanctuary Boss Fight Attempt #2
Sonic Megamix Mania
15:42 Metallic Base Zone Act 1
20:09 Metallic Base Zone Act 2
22:56 Outro

[@Lightspeeds]

Timestamps:
Sonic Superstars
0:00 Sand Sanctuary Act 1
2:24: Special Stage #3
10:36 Sand Sanctuary Boss Fight Attempt #2
Sonic Megamix Mania
15:42 Metallic Base Zone Act 1
20:09 Metallic Base Zone Act 2
22:56 Outro