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. 01 October 2012 - Add a guideLook Both Ways 06 July 2012 - Add a guideGreased LightningCleared Green Hill within one minute. 06 July 2012 - 1 guideCan't Touch ThisTook no damage while defeating the final boss. 06 July 2012 - 2 guidesBig BangGot Rank S in all acts. 06 July 2012 - Add a guideBlue CometGot Rank S in acts 12 times. 06 July 2012 - Add a guideWalk on Air 06 July 2012 - Add a guide(Hedge)Hogging It All Up!Got all collectibles. 06 July 2012 - Add a guideMad SkillzGot all custom skills. 06 July 2012 - Add a guideRed Ring CollectorGot all Red Star Rings. 06 July 2012 - Add a guideDemolition Derby 06 July 2012 - Add a guideBlazing MeteorGot Rank S in acts seven times. 06 July 2012 - Add a guideThe Byway or the Highway 06 July 2012 - 1 guideWalk on WaterCleared CHEMICAL PLANT without entering the water. 05 July 2012 - 1 guideMission Accomplished!Cleared all the missions. 04 July 2012 - Add a guideBonds of FriendshipCompleted all of Sonic's friends' Challenges. 04 July 2012 - Add a guideWalkie TalkieChatted with all of Sonic's friends you saved. 03 July 2012 - Add a guideJoin the RanksJoined the rankings. 03 July 2012 - Add a guideA 30-Second TestParticipated in a 30 Second Trial. 03 July 2012 - Add a guideTrickstarExecuted a trick with a seven-step combo or longer. 03 July 2012 - 1 guideSupersonic! 03 July 2012 - Add a guideAll Stages Clear!Cleared Sonic Generations. 03 July 2012 - Add a guideTreasure Hunter 03 July 2012 - Add a guideBoom Boom Dragoon 03 July 2012 - Add a guideSilver Got Served 03 July 2012 - Add a guideHalfway PointCleared half the missions. 03 July 2012 - Add a guidePLANET WISP Restored! 03 July 2012 - Add a guideColor Power! 03 July 2012 - Add a guideROOFTOP RUN Restored! 03 July 2012 - Add a guideA Quick Breather 03 July 2012 - 1 guideCRISIS CITY Restored! 03 July 2012 - Add a guidePerfect Punisher 03 July 2012 - Add a guideShadow Boxing 03 July 2012 - Add a guideSEASIDE HILL Restored! 03 July 2012 - Add a guideAction HeroPerformed all of Sonic's actions in Act 2. 03 July 2012 - Add a guideSecret Sleuth 03 July 2012 - Add a guideCITY ESCAPE Restored! 03 July 2012 - Add a guideSPEED HIGHWAY Restored! 03 July 2012 - Add a guideSunny side up 03 July 2012 - Add a guideScrap Metal 03 July 2012 - Add a guideSKY SANCTUARY Restored! 02 July 2012 - Add a guideEradicatorDefeated 100 enemies. 02 July 2012 - Add a guideCHEMICAL PLANT Restored! 02 July 2012 - Add a guideJump for Joy!Found the spring hidden in GREEN HILL Act 1 and reached the goal with a Red Star Ring. 21 May 2012 - Add a guideRing KingReached the goal without dropping any of the rings you collected in GREEN HILL Act 1. 21 May 2012 - Add a guideShooting StarGot Rank S in acts three times. 21 May 2012 - Add a guideGREEN HILL Restored! 20 May 2012 - Add a guideBright StarGot Rank S in an act. 20 May 2012 - Add a guideThe Opening ActCompleted the first stage. 20 May 2012 - Add a guide