ACHIEVEMENT - HOW TO UNLOCK (Hedge)Hogging It All Up! - Got all collectibles. A 30-Second Test - Participated in a 30 Second Trial. A Quick Breather - Got the Red Star Ring atop the highest spot in ROOFTOP RUN. Action Hero - Performed all of Sonic's actions in Act 2. All Stages Clear! - Cleared sonic generations. Big Bang - Got Rank S in all acts. Blazing Meteor - Got Rank S in acts seven times. Blue Comet - Got Rank S in acts 12 times. Bonds of Friendship - Completed all of Sonic's friends' Challenges. Boom Boom Dragoon - Defeated egg dragoon. Bright Star - Got Rank S in an act. Can't Touch This - Took no damage while defeating the final boss. CHEMICAL PLANT Restored! - Restored the CHEMICAL PLANT Stage Gate. CITY ESCAPE Restored! - Restored the CITY ESCAPE Stage Gate. Color Power! - Got the Red Star Ring by using an Orange Wisp in PLANET WISP. CRISIS CITY Restored! - Restored the CRISIS CITY Stage Gate. Demolition Derby - Wrecked 30 or more cars in city escape. Eradicator - Defeated 100 enemies. Greased Lightning - Cleared Green Hill within one minute. GREEN HILL Restored! - Restored the GREEH HILL stage Gate. Halfway Point - Cleared half the missions. Join the Ranks - Joined the rankings. Jump for Joy! - Found the spring hidden in GREEN HILL Act 1 and reached the goal with a Red Star Ring. Look Both Ways - Reached the goal in CRISIS CITY without being hit by a tornado-carried car. Mad Skillz - Got all custom skills. Mission Accomplished! - Cleared all the missions. Perfect Punisher - Defeated perfect chaos. PLANET WISP Restored! - Restored the PLANET WISP Stage Gate. Red Ring Collector - Got all Red Star Rings. Ring King - Reached the goal without dropping any of the rings you collected in GREEN HILL Act 1. ROOFTOP RUN Restored! - Restored the ROOFTOP RUN Stage Gate. Scrap Metal - Defeated metal sonic. SEASIDE HILL Restored! - Restored the SEASIDE HILL Stage Gate. Secret Sleuth - Got the Red Star Ring located in the hidden room in SEASIDE HILL. Shadow Boxing - Defeated shadow. Shooting Star - Got Rank S in acts three times. Silver Got Served - Defeated silver. SKY SANCTUARY Restored! - Restored the SKY SANCTUARY Stage Gate. SPEED HIGHWAY Restored! - Restored the SPEED HIGHWAY Stage Gate. Sunny side up - Defeated death egg robot. Supersonic! - Cleared a regular stage as Super Sonic. The Byway or the Highway - Got the Red Star Ring located on the shortcut route in SPEED HIGHWAY. The Opening Act - Completed the first stage. Time Attacker - Played Time Attack on all stages. Treasure Hunter - Collected all the Chaos Emeralds. Trickstar - Executed a trick with a seven-step combo or longer. Walk on Air - Cleared SKY SANCTUARY without falling even once. Walk on Water - Cleared CHEMICAL PLANT without entering the water. Walkie Talkie - Chatted with all of Sonic's friends you saved.