This game is also available on PS3, PSP and Mega Drive.
Retro Game Tips for Sonic The Hedgehog (Xbox 360)
Achievement: achievements
When:
during game
How:
Blue Phantom (20) Super Sonic Obtain the all moves.
Dark Hero (50) Meet all the requests with magnificent skill.
Elite Agent (40) Complete all the tasks given as agent.
Gold Medalist (50) Collect all the Soleanna legendary Gold Medals.
Legend of Soleanna (100) Overcome all trials and accomplish a great feat.
Nights of Kronos (60) Unlock the complete ending to the last hidden story.
One to Reach the End (20) End the last hidden story.
Psychic Soldier (20) Obtain all the power to save the future world.
Shadow Episode: Cleared (30) Clear Shadow Episode!
Shadow Episode: Completed (40) Clear unlocked Shadow difficult level mission.
Shadow Episode: Mastered (60) Clear all unlocked Shadow ACT Missions with Rank S.
Silver Episode: Cleared (30) Clear Silver Episode!
Silver Episode: Completed (40) Clear unlocked Silver difficult level mission.
Silver Episode: Mastered (60) Clear all unlocked Silver ACT Missions with Rank S.
Silver Medalist (50) Collect all the Silver Medals scattered around Soleanna.
Silver The Liberator (40) Solve all the mystery in Soleanna.
Silver The Savior (50) Reveal all the secrets with your ultimate power.
Soleanna's Blue Wind (50) Solve all the problems swiftly.
Soleanna's Hero (40) Solve all Soleannans' problems.
Sonic Episode: Cleared (30) Clear Sonic Episode!
Sonic Episode: Completed (40) Clear unlocked Sonic difficult level mission.
Sonic Episode: Mastered (60) Clear all unlocked Sonic ACT Missions with Rank S.
Ultimate Life Form (20) Resurrect the ultimate power from the lost memory.
Dark Hero (50) Meet all the requests with magnificent skill.
Elite Agent (40) Complete all the tasks given as agent.
Gold Medalist (50) Collect all the Soleanna legendary Gold Medals.
Legend of Soleanna (100) Overcome all trials and accomplish a great feat.
Nights of Kronos (60) Unlock the complete ending to the last hidden story.
One to Reach the End (20) End the last hidden story.
Psychic Soldier (20) Obtain all the power to save the future world.
Shadow Episode: Cleared (30) Clear Shadow Episode!
Shadow Episode: Completed (40) Clear unlocked Shadow difficult level mission.
Shadow Episode: Mastered (60) Clear all unlocked Shadow ACT Missions with Rank S.
Silver Episode: Cleared (30) Clear Silver Episode!
Silver Episode: Completed (40) Clear unlocked Silver difficult level mission.
Silver Episode: Mastered (60) Clear all unlocked Silver ACT Missions with Rank S.
Silver Medalist (50) Collect all the Silver Medals scattered around Soleanna.
Silver The Liberator (40) Solve all the mystery in Soleanna.
Silver The Savior (50) Reveal all the secrets with your ultimate power.
Soleanna's Blue Wind (50) Solve all the problems swiftly.
Soleanna's Hero (40) Solve all Soleannans' problems.
Sonic Episode: Cleared (30) Clear Sonic Episode!
Sonic Episode: Completed (40) Clear unlocked Sonic difficult level mission.
Sonic Episode: Mastered (60) Clear all unlocked Sonic ACT Missions with Rank S.
Ultimate Life Form (20) Resurrect the ultimate power from the lost memory.
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