Shadow the Hedgehog

Shadow the Hedgehog is a Third Person Shooter for the Nintendo GameCube, Playstation 2 and Xbox, starring Shadow and other characters from previous Sonic video games. It was developed by Sonic Team and published by Sega.

Plot
Three months after Sonic Heroes, Shadow has abandoned Team Dark to uncover the truth of his history and past. He witnesses the aliens known as "Black Arms" attack Humanity in Westopolis and is confronted by their sinister leader, Black Doom, who claims to know the truth. Shadow is then left to decide what he should do: collect the Chaos Emeralds to find out the truth, turn to the dark side or become a hero.

Characters

 * Shadow the Hedgehog
 * Black Doom
 * Maria Robotnik
 * Gerald Robotnik
 * Sonic the Hedgehog
 * Amy Rose
 * Charmy Bee
 * Espio the Chameleon
 * Knuckles the Ecidina
 * Rogue the Bat
 * Tails 
 * Vector the Crocodile
 * E-123 Omega
 * Dr. Eggman
 * Doom's Eye
 * G.U.N. Commander

​Missions
In each missions, there are often three objectives but in last stages, there are only two objectives which must be completed to get the ending. Hero and Dark Objectives will be different in each mission but in nuetral objectives: you must get to the end of the stage and collect the Chaos Emerald in the Goal Ring like a regular Sonic game. ​