Full list of all 46 Sonic Colors: Ultimate achievements worth 1,000 gamerscore. It takes around 20-25 hours to unlock all of the achievements on Xbox One.
Play Through The Credits Level
Complete Terminal Velocity
Collect 300 Rings In One Run
Complete Asteroid Coaster
Collect All 5 Red Star Rings In Any Level
Grab All 5 Red Star Rings In One Run On Any Act
Score 100,000 Points In One Run Using Quick Step
Complete Aquarium Park
Complete Planet Wisp
Beat A Previous Personal Best On Any Level
Destroy 100 Enemies Using Sweet Spot Homing Attacks
Complete Starlight Carnival
Complete Sweet Mountain
Destroy 100 Enemies Using Homing Attacks
Complete Tropical Resort
Defeat Rotatatron With Less Than 3 Hits
Destroy 50 Enemies Using Homing Attacks
Get An "A" Rank Or Higher On Any Act
Collect All 180 Red Star Rings
Collect The Green Chaos Emerald
Collect The Yellow Chaos Emerald
Collect The Silver Chaos Emerald
Collect The Red Chaos Emerald
Collect The Purple Chaos Emerald
Collect The Blue Chaos Emerald
Collect The Cyan Chaos Emerald
Finish Any Act As Super Sonic
Get An "S" Rank On Any Act
Set A Personal Best, And Then Break All Of The Numbers On The Results Screen
Complete Any Act Without Picking Up Any Rings
Get 100% In Tropical Resort
Get 100% In Sweet Mountain
Get 100% In Starlight Carnival
Get 100% In Planet Wisp
Get 100% In Aquarium Park
Get 100% In Asteroid Coaster
Get 100% In Terminal Velocity
Defeat Captain Jelly With Less Than 3 Hits
Complete Egg Shuttle
Defeat Admiral Jelly With Less Than 3 Hits
Defeat Refreshinator With Less Than 3 Hits
Get An "S" Rank Against Nega-Wisp Armor
Get An "S" Rank Against Frigate Orcan
Get An "S" Rank Against Frigate Skullian
Break Every Rank From D To S On The Results Screen
Collect All 30 Red Star Rings From Any Area