Invader

https://www.youtube.com/watch?v=92H3Mscg7QQ

Dr Robotnik's Theme

https://www.youtube.com/watch?v=44dwsrArDX8

Sonic 3 & Knuckles Robotnik Orchestral remix

https://www.youtube.com/watch?v=VI0y28_LSTk

Final Boss Theme (JP/EU)

https://www.youtube.com/watch?v=T0MDseJYH2M

Sonic 3 Final Boss Orchestral Remix

https://www.youtube.com/watch?v=FnZS720GpaA

Guts Man Theme Techno Remix

https://www.youtube.com/watch?v=51_kBJbViEk

Wily Machine Arranged

https://www.youtube.com/watch?v=uTVlR8UYF7g

Last Battle - Hard Destruction Remix

https://www.youtube.com/watch?v=HGDQV9FtF5s

Crazy Robo (E-101 MKII)

https://www.youtube.com/watch?v=xYn-ipADKJ4

We're the Robots

https://www.youtube.com/watch?v=knOZU7UQIv8

Sonic 3 - Final Boss Remake Orchestrated/Rock

https://www.youtube.com/watch?v=pFK5aM9XGu4

Dr. Robotnik's Theme

https://www.youtube.com/watch?v=aO_z2nO3ByM

Stardust Speedway (Bad Future) (JP/PAL)

https://www.youtube.com/watch?v=kTl3h39abxc

Magician's Theme (The House of the Dead 2)

https://www.youtube.com/watch?v=kB00TDd4VTo

Boss Battle: Death Egg Robot

https://www.youtube.com/watch?v=zg_L4vzn8k0

Wily Machine Remix

https://www.youtube.com/watch?v=yxLXbvPGH4A

Born Again

https://www.youtube.com/watch?v=7QzXWYaR79s

Boss Battle: Perfect Chaos Part II

https://www.youtube.com/watch?v=iuzEh4OK_EY

Death Battle Archive

Which one is your favorite?