Suggestions by @modothegreatest

AKLO

as Final Boss Theme Singers (Easy & Normal Mode) in Sonic Frontiers: Re-Cyberized

Anly (Singer)

as Final Boss Theme Singers (Easy & Normal Mode) in Sonic Frontiers: Re-Cyberized

Hiroyuki Sawano

as Final Boss Theme Singers (Easy & Normal Mode) in Sonic Frontiers: Re-Cyberized

Die for Love (MIYAVI)

as Third and Fourth Boss Theme Inspiration in Sonic Frontiers: Re-Cyberized

Reviver (My First Story)

as Third and Fourth Boss Theme Inspiration in Sonic Frontiers: Re-Cyberized

My First Story

as Third and Fourth Boss Theme Singer in Sonic Frontiers: Re-Cyberized

Speak of the Devil (Survive Said The Prophet & Masato from Coldrain)

as First and Second Boss Themes Inspiration in Sonic Frontiers: Re-Cyberized

Black Tar (Xenoblade X)

as First and Second Boss Themes Inspiration in Sonic Frontiers: Re-Cyberized

Coldrain

as First and Second Boss Themes Singer in Sonic Frontiers: Re-Cyberized

Phoenix (Final Fantasy XVI)

as Ignirex Inspiration in Sonic Frontiers: Re-Cyberized

Mitsuru Miyamoto

as Ignirex (JP) in Sonic Frontiers: Re-Cyberized

Phoenix Sound Effect

as Ignirex (JP) in Sonic Frontiers: Re-Cyberized

Andrew Russell

as Ignirex (True Final Boss) (Hard and Extreme Mode) in Sonic Frontiers: Re-Cyberized

Phoenix Sound Effect

as Ignirex (True Final Boss) (Hard and Extreme Mode) in Sonic Frontiers: Re-Cyberized

Metal Gear RAY

as Egg Cyber Inspiration in Sonic Frontiers: Re-Cyberized

Metal Face

as Egg Cyber Inspiration in Sonic Frontiers: Re-Cyberized

Kotaro Nakamura

as Egg Cyber (JP) in Sonic Frontiers: Re-Cyberized

Robot Sound Effects

as Egg Cyber (JP) in Sonic Frontiers: Re-Cyberized

Mike Pollock

as Egg Cyber (Final Boss) (Easy and Normal Mode) in Sonic Frontiers: Re-Cyberized

Robot Sound Effects

as Egg Cyber (Final Boss) (Easy and Normal Mode) in Sonic Frontiers: Re-Cyberized