Music Theory: Sonic CD's Tidal Tempest

A look inside the music theory of Sonic CD's Tidal Tempest.
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Clips

3:17 & 5:22 & 5:58
Zone Maps from Sonic Zone 0
http://www.soniczone0.com/games/sonic...

5:08
Labyrinth Zone Gameplay by Anon7906
Sonic the Hedgehog (PC 4K) Retro Engine
   • Sonic the Hedgehog (PC 4K) Retro Engine  

7:22
Metal Gear Solid 2: Sons of Liberty
Gameplay by 4K Gaming
Metal Gear Solid 2 [4K] | Tanker Chapter
   • Metal Gear Solid 2 [4K] | Tanker Chapter  

7:28
Drone clip by Creators Nexus
Drone green screen video
   • Drone green screen video  

8:58
Sonic Chronicles Gameplay by RadiøactiveRahSNG
Sonic Chronicles: The Dark Brotherhood - Part 6: Black Hole Sun
   • Sonic Chronicles: The Dark Brotherhoo...  

11:43
Sonic Drowning Sprite from cartoonsanimate22
https://www.deviantart.com/cartoonsan...

14:23
Little Hula Girl (and Her Mother)
Photo by tanakawho
https://www.flickr.com/photos/2848108...

16:05
Sonic Movie 2
By Paramount Pictures / Sega Sammy
   • Sonic the Hedgehog 2 (2022) - Temple ...  

Audio

0:01 & 1:58 & 4:20 & 5:30 & 16:18
Tidal Tempest, Present
Composer: Masafumi Ogata

1:38
Mission Briefing, Time Trax
Composer: Tim Follin

3:35
Tidal Plant Zone Act 2
From Sonic Triple Trouble 16-bit
Arrangement: rigid_atoms
Original Composer: Yayoi Fujimori

5:10
Labyrinth Zone, Sonic 1
Composer: Masato Nakamura

5:57
Tidal Tempest, Past
Composer: Masafumi Ogata

8:58
Metropolis Ground Zero
From Sonic Chronicles: The Dark Brotherhood
Original Composer: Masafumi Ogata

9:29
Tidal Tempest, Good Future
Composer: Masafumi Ogata

10:26 & 12:24
Tidal Tempest, Bad Future
Composer: Masafumi Ogata

12:09
Fighting in the Street
From Streets of Rage
Composer: Yuzo Koshiro

13:10 & 13:52
Tidal Tempest, Bad Future (USA OST)
Composer: Spencer Nilsen

13:44
Mining Melancholy (Piano Arrangement)
From Donkey Kong Country 2
Original Composer: David Wise

14:32
Tidal Tempest, Good Future (USA OST)
Composer: Spencer Nilsen

15:03
Tidal Tempest, Present (USA OST)
Composer: Spencer Nilsen

Correction:
In the sheet music of the original soundtrack's Tidal Tempest future, the chord vi-6 incorrectly appears as capital VI-6. However the Fm6 representation is accurate.