NOTE: Sorry guys! Could only extend to 5 minutes because My computer's being a lit bitch.

Stardust Speedway (Bad Future) or otherwise Known as the Metal Sonic Battle Theme, now remixed in Generations! 

Sonic Generations Soundtrack - Stardust Speedway (Bad Future)/Metal Sonic Battle Remix

TRANSCENDING

Sonic The Hedgehog 3 & Knuckles - The Doomsday Zone

Composed/Remixed by Tee Lopes for the Sonic Mania OST

Metallic Madness Zone Act 1 - Sonic Mania OST

Sonic Mania | Chemical Plant Zone Act 1

Sonic Mania | Metallic Madness Zone Act 1

Sonic Mania | Metallic Madness Zone Act 2

Sonic Mania | Hard Boiled Heavies "Hi-Spec Robo Go!"

Sonic Generations Disc 1 (Genesis Era)

Metal Sonic

1-09 Boss!!!

2-05 Metallic Madness JP

The Sonic Mania OST by Tee Lopes and Hyper Potions. Copyright SEGA 2017.
Second account of https://soundcloud.com/rman41.

Sonic Mania | Hard Boiled Heavies "Hi-Spec Robo Go!"

SonicManiaOST