Sonic Generations Collection Achievements Here is the full list of all 49 Sonic Generations Collection achievements. It takes around 20-25 hours to unlock all of the achievements on Windows.Filter Achievement View View Image viewList view Sort by Won first then by TrueSteamAchievement desc TrueSteamAchievement asc Achievement name desc Achievement name asc TSA Ratio desc TSA Ratio asc Gamers desc Gamers asc Steam order Date won desc Date won asc Flag Filter All None 39 Offline Mode 3 Online Mode 7 Online/Offline 49 Single Player 19 Main Storyline 9 Collectable 1 Cumulative + 6 Time/Date Link flagsOR joinAND join Achievements without these flags What are achievement flags? Click to find outApply AllWonNot wonThe Opening ActCompleted the first stage. 31 December 2011 - Add a guideGREEN HILL Restored! 31 December 2011 - Add a guideCHEMICAL PLANT Restored! 31 December 2011 - Add a guideSKY SANCTUARY Restored! 31 December 2011 - Add a guideSPEED HIGHWAY Restored! 31 December 2011 - Add a guideCITY ESCAPE Restored! 31 December 2011 - Add a guideSEASIDE HILL Restored! 31 December 2011 - Add a guideCRISIS CITY Restored! 31 December 2011 - Add a guideROOFTOP RUN Restored! 31 December 2011 - Add a guidePLANET WISP Restored! 31 December 2011 - Add a guideSunny side up 31 December 2011 - Add a guidePerfect Punisher 31 December 2011 - Add a guideBoom Boom Dragoon 31 December 2011 - Add a guideScrap Metal 31 December 2011 - Add a guideShadow Boxing 31 December 2011 - Add a guideSilver Got Served 31 December 2011 - Add a guideTreasure Hunter 31 December 2011 - Add a guideAll Stages Clear!Cleared Sonic Generations. 31 December 2011 - Add a guideGreased LightningCleared Green Hill within one minute. 31 December 2011 - 1 guideBright StarGot Rank S in an act. 31 December 2011 - Add a guideShooting StarGot Rank S in acts three times. 31 December 2011 - Add a guideBlazing MeteorGot Rank S in acts seven times. 31 December 2011 - Add a guideBlue CometGot Rank S in acts 12 times. 31 December 2011 - Add a guideBig BangGot Rank S in all acts. 31 December 2011 - Add a guideTrickstarExecuted a trick with a seven-step combo or longer. 31 December 2011 - 1 guideEradicatorDefeated 100 enemies. 31 December 2011 - Add a guideRing KingReached the goal without dropping any of the rings you collected in GREEN HILL Act 1. 31 December 2011 - Add a guideAction HeroPerformed all of Sonic's actions in Act 2. 31 December 2011 - Add a guideCan't Touch ThisTook no damage while defeating the final boss. 31 December 2011 - 2 guidesBonds of FriendshipCompleted all of Sonic's friends' Challenges. 31 December 2011 - Add a guideWalkie TalkieChatted with all of Sonic's friends you saved. 31 December 2011 - Add a guideJoin the RanksJoined the rankings. 31 December 2011 - Add a guideA 30-Second TestParticipated in a 30 Second Trial. 31 December 2011 - Add a guideJump for Joy!Found the spring hidden in GREEN HILL Act 1 and reached the goal with a Red Star Ring. 31 December 2011 - Add a guideWalk on WaterCleared CHEMICAL PLANT without entering the water. 31 December 2011 - 1 guideWalk on Air 31 December 2011 - Add a guideThe Byway or the Highway 31 December 2011 - 1 guideDemolition Derby 31 December 2011 - Add a guideSecret Sleuth 31 December 2011 - Add a guideLook Both Ways 31 December 2011 - Add a guideA Quick Breather 31 December 2011 - 1 guideColor Power! 31 December 2011 - Add a guideSupersonic! 31 December 2011 - Add a guideMad SkillzGot all custom skills. 31 December 2011 - Add a guide(Hedge)Hogging It All Up!Got all collectibles. 31 December 2011 - Add a guideTime AttackerPlayed Time Attack on all stages. 31 December 2011 - Add a guideRed Ring CollectorGot all Red Star Rings. 31 December 2011 - Add a guideHalfway PointCleared half the missions. 31 December 2011 - Add a guideMission Accomplished!Cleared all the missions. 31 December 2011 - Add a guide