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 wonTime AttackerPlayed Time Attack on all stages. 27 September 2012 - Add a guideCan't Touch ThisTook no damage while defeating the final boss. 04 July 2012 - 2 guidesSupersonic! 29 June 2012 - Add a guideLook Both Ways 29 June 2012 - Add a guideWalk on WaterCleared CHEMICAL PLANT without entering the water. 29 June 2012 - 1 guideMad SkillzGot all custom skills. 28 June 2012 - Add a guideAll Stages Clear!Cleared Sonic Generations. 28 June 2012 - Add a guide(Hedge)Hogging It All Up!Got all collectibles. 28 June 2012 - Add a guideTreasure Hunter 28 June 2012 - Add a guideBoom Boom Dragoon 28 June 2012 - Add a guideMission Accomplished!Cleared all the missions. 28 June 2012 - Add a guideBonds of FriendshipCompleted all of Sonic's friends' Challenges. 28 June 2012 - Add a guideSilver Got Served 27 June 2012 - Add a guideWalkie TalkieChatted with all of Sonic's friends you saved. 27 June 2012 - Add a guideRed Ring CollectorGot all Red Star Rings. 27 June 2012 - Add a guidePLANET WISP Restored! 27 June 2012 - Add a guideBig BangGot Rank S in all acts. 27 June 2012 - Add a guideColor Power! 26 June 2012 - Add a guideROOFTOP RUN Restored! 26 June 2012 - Add a guideA Quick Breather 26 June 2012 - 1 guideCRISIS CITY Restored! 26 June 2012 - Add a guidePerfect Punisher 23 June 2012 - Add a guideHalfway PointCleared half the missions. 23 June 2012 - Add a guideShadow Boxing 23 June 2012 - Add a guideSEASIDE HILL Restored! 23 June 2012 - Add a guideBlue CometGot Rank S in acts 12 times. 23 June 2012 - Add a guideSecret Sleuth 23 June 2012 - Add a guideCITY ESCAPE Restored! 23 June 2012 - Add a guideDemolition Derby 23 June 2012 - Add a guideSPEED HIGHWAY Restored! 23 June 2012 - Add a guideBlazing MeteorGot Rank S in acts seven times. 23 June 2012 - Add a guideThe Byway or the Highway 23 June 2012 - 1 guideAction HeroPerformed all of Sonic's actions in Act 2. 23 June 2012 - Add a guideSunny side up 23 June 2012 - Add a guideScrap Metal 23 June 2012 - Add a guideGreased LightningCleared Green Hill within one minute. 23 June 2012 - 1 guideA 30-Second TestParticipated in a 30 Second Trial. 23 June 2012 - Add a guideSKY SANCTUARY Restored! 22 June 2012 - Add a guideWalk on Air 22 June 2012 - Add a guideCHEMICAL PLANT Restored! 22 June 2012 - Add a guideShooting StarGot Rank S in acts three times. 22 June 2012 - Add a guideJump for Joy!Found the spring hidden in GREEN HILL Act 1 and reached the goal with a Red Star Ring. 22 June 2012 - Add a guideGREEN HILL Restored! 22 June 2012 - Add a guideTrickstarExecuted a trick with a seven-step combo or longer. 22 June 2012 - 1 guideBright StarGot Rank S in an act. 22 June 2012 - Add a guideThe Opening ActCompleted the first stage. 22 June 2012 - Add a guideRing KingReached the goal without dropping any of the rings you collected in GREEN HILL Act 1. 22 June 2012 - Add a guideJoin the RanksJoined the rankings. 21 June 2012 - Add a guideEradicatorDefeated 100 enemies. 21 June 2012 - Add a guide