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 wonCan't Touch ThisTook no damage while defeating the final boss. 24 June 2012 - 2 guidesTime AttackerPlayed Time Attack on all stages. 19 June 2012 - Add a guide(Hedge)Hogging It All Up!Got all collectibles. 30 May 2012 - Add a guideMad SkillzGot all custom skills. 30 May 2012 - Add a guideRed Ring CollectorGot all Red Star Rings. 30 May 2012 - Add a guideMission Accomplished!Cleared all the missions. 30 May 2012 - Add a guideBig BangGot Rank S in all acts. 27 May 2012 - Add a guideBonds of FriendshipCompleted all of Sonic's friends' Challenges. 26 May 2012 - Add a guideBlue CometGot Rank S in acts 12 times. 25 May 2012 - Add a guideGreased LightningCleared Green Hill within one minute. 23 May 2012 - 1 guideTrickstarExecuted a trick with a seven-step combo or longer. 23 May 2012 - 1 guideThe Byway or the Highway 23 May 2012 - 1 guideHalfway PointCleared half the missions. 22 May 2012 - Add a guideSecret Sleuth 22 May 2012 - Add a guideColor Power! 21 May 2012 - Add a guideBlazing MeteorGot Rank S in acts seven times. 21 May 2012 - Add a guideWalk on WaterCleared CHEMICAL PLANT without entering the water. 21 May 2012 - 1 guideAction HeroPerformed all of Sonic's actions in Act 2. 21 May 2012 - Add a guideLook Both Ways 21 May 2012 - Add a guideWalk on Air 21 May 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 guideSupersonic! 18 May 2012 - Add a guideAll Stages Clear!Cleared Sonic Generations. 18 May 2012 - Add a guideTreasure Hunter 18 May 2012 - Add a guideBoom Boom Dragoon 18 May 2012 - Add a guideSilver Got Served 17 May 2012 - Add a guideWalkie TalkieChatted with all of Sonic's friends you saved. 17 May 2012 - Add a guidePLANET WISP Restored! 17 May 2012 - Add a guideROOFTOP RUN Restored! 16 May 2012 - Add a guideA Quick Breather 16 May 2012 - 1 guideCRISIS CITY Restored! 16 May 2012 - Add a guidePerfect Punisher 16 May 2012 - Add a guideShadow Boxing 16 May 2012 - Add a guideSEASIDE HILL Restored! 16 May 2012 - Add a guideCITY ESCAPE Restored! 15 May 2012 - Add a guideDemolition Derby 15 May 2012 - Add a guideShooting StarGot Rank S in acts three times. 08 May 2012 - Add a guideSPEED HIGHWAY Restored! 07 May 2012 - Add a guideSunny side up 07 May 2012 - Add a guideScrap Metal 07 May 2012 - Add a guideRing KingReached the goal without dropping any of the rings you collected in GREEN HILL Act 1. 06 May 2012 - Add a guideA 30-Second TestParticipated in a 30 Second Trial. 04 May 2012 - Add a guideJoin the RanksJoined the rankings. 03 May 2012 - Add a guideSKY SANCTUARY Restored! 31 December 2011 - Add a guideEradicatorDefeated 100 enemies. 31 December 2011 - Add a guideBright StarGot Rank S in an act. 04 November 2011 - Add a guideCHEMICAL PLANT Restored! 04 November 2011 - Add a guideGREEN HILL Restored! 04 November 2011 - Add a guideThe Opening ActCompleted the first stage. 04 November 2011 - Add a guide