Sonic Generations Achievements

Restored the SKY SANCTUARY Stage Gate.

Restored the SPEED HIGHWAY Stage Gate.

Restored the CITY ESCAPE Stage Gate.

Restored the GREEN HILL Stage Gate.

Restored the CHEMICAL PLANT Stage Gate.

Restored the PLANET WISP Stage Gate.

Restored the SEASIDE HILL Stage Gate.

Restored the CRISIS CITY Stage Gate.

Restored the ROOFTOP RUN Stage Gate.

Collected all the Chaos Emeralds.

(7) 

Defeated Shadow.

Defeated Silver.

Defeated Metal Sonic.

Defeated Perfect Chaos.

Defeated Egg Dragoon.

Defeated Death Egg Robot.

Took no damage from the final boss and cleared the stage.

Got the Red Star Ring atop the highest spot in ROOFTOP RUN Act 2 and reached the goal.

 

Got the Red Star Ring by using an Orange Wisp in PLANET WISP Act 2 and reached the goal.

(2) 

Cleared a regular stage as Super Sonic.

Cleared SKY SANCTUARY Act 1 without falling and losing a life.

(2) 

Wrecked 30 or more cars in CITY ESCAPE Act 2.

(2) 

Got the Red Star Ring located in the hidden room in SEASIDE HILL Act 1 and reached the goal.

(4) 

Reached the goal in CRISIS CITY Act 2 without being hit by a tornado-carried cars or rocks.

(10) 

Cleared CHEMICAL PLANT Act 2 without entering the water.

(10) 

Found the spring hidden in GREEN HILL Act 1 and reached the goal with a Red Star Ring.

(2) 

Got the Red Star Ring located on the shortcut route in SPEED HIGHWAY Act 2 and reached the goal.