Sonic The Hedgehog - High Speed - Platform: XBox 360 Achievements: ------------- Accomplish the indicated achievement to get the corresponding number of Gamerscore points: Centurion (10 points): Get 100 or more rings. Clear Green (5 points): Clear the Green Hill Zone. Fast Green (10 points): Beat Green Hill Zone Act 1 in under 35 seconds. Fast Marble (15 points): Beat Marble Zone Act 1 in under 80 seconds. Star Light Zone (5 points): Get to the Star Light Zone. Spring Yard Zone (7 points): Get to the Spring Yard Zone. Labyrinth Zone (8 points): Get to the Labyrinth Zone. Chaos Emerald (10 points): Get one Chaos Emerald. Chaos Master (35 points): Get all the Chaos Emeralds. Win (25 points): Beat the game. Fast Win (30 points): Beat the game in under 40 minutes. Perfect Win (40 points): Beat the game without dying.