Shadow the Hedgehog (Game) - Giant Bomb

A darker, grittier, and edgier spin-off of the Sonic the Hedgehog series starring the mysterious amnesiac antihero Shadow the Hedgehog. It is one of the series's more controversial games due to it's edgier themes (including use of slight amount of profanity and gunplay).

Final Haunt, Sonic Wiki Zone

Central City (Shadow the Hedgehog), Sonic Wiki Zone

Sonic Heroes (Game) - Giant Bomb

Lost Impact, Sonic Wiki Zone

Rouge The Bat (Character) - Giant Bomb

Sonic the Hedgehog (2020) (Film) - TV Tropes

Sonic Prime (Western Animation) - TV Tropes

Cryptic Castle, Sonic Wiki Zone

Egg Breaker - Sonic Retro

Is Sonic the Hedgehog (2006) a Masterpiece?