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. 23 May 2013 - 2 guidesTime AttackerPlayed Time Attack on all stages. 23 May 2013 - Add a guideLook Both Ways 25 April 2013 - Add a guide(Hedge)Hogging It All Up!Got all collectibles. 24 April 2013 - Add a guideMad SkillzGot all custom skills. 24 April 2013 - Add a guideRed Ring CollectorGot all Red Star Rings. 24 April 2013 - Add a guideColor Power! 24 April 2013 - Add a guideSecret Sleuth 23 April 2013 - Add a guideJoin the RanksJoined the rankings. 23 April 2013 - Add a guideA 30-Second TestParticipated in a 30 Second Trial. 23 April 2013 - Add a guideThe Byway or the Highway 22 April 2013 - 1 guideSupersonic! 21 April 2013 - Add a guideMission Accomplished!Cleared all the missions. 16 April 2013 - Add a guideBonds of FriendshipCompleted all of Sonic's friends' Challenges. 16 April 2013 - Add a guideBig BangGot Rank S in all acts. 16 April 2013 - Add a guideA Quick Breather 16 April 2013 - 1 guideHalfway PointCleared half the missions. 13 April 2013 - Add a guideGreased LightningCleared Green Hill within one minute. 13 April 2013 - 1 guideJump for Joy!Found the spring hidden in GREEN HILL Act 1 and reached the goal with a Red Star Ring. 13 April 2013 - Add a guideBlue CometGot Rank S in acts 12 times. 13 April 2013 - Add a guideWalk on WaterCleared CHEMICAL PLANT without entering the water. 13 April 2013 - 1 guideTrickstarExecuted a trick with a seven-step combo or longer. 16 January 2012 - 1 guideRing KingReached the goal without dropping any of the rings you collected in GREEN HILL Act 1. 06 January 2012 - Add a guideDemolition Derby 30 December 2011 - Add a guideWalkie TalkieChatted with all of Sonic's friends you saved. 29 December 2011 - Add a guideBlazing MeteorGot Rank S in acts seven times. 29 December 2011 - Add a guideWalk on Air 29 December 2011 - Add a guideAll Stages Clear!Cleared Sonic Generations. 29 December 2011 - Add a guideTreasure Hunter 29 December 2011 - Add a guideBoom Boom Dragoon 29 December 2011 - Add a guideSilver Got Served 29 December 2011 - Add a guidePLANET WISP Restored! 29 December 2011 - Add a guideROOFTOP RUN Restored! 28 December 2011 - Add a guideCRISIS CITY Restored! 28 December 2011 - Add a guideAction HeroPerformed all of Sonic's actions in Act 2. 28 December 2011 - Add a guidePerfect Punisher 28 December 2011 - Add a guideShadow Boxing 28 December 2011 - Add a guideSEASIDE HILL Restored! 28 December 2011 - Add a guideCITY ESCAPE Restored! 28 December 2011 - Add a guideSPEED HIGHWAY Restored! 28 December 2011 - Add a guideShooting StarGot Rank S in acts three times. 28 December 2011 - Add a guideSunny side up 28 December 2011 - Add a guideScrap Metal 28 December 2011 - Add a guideSKY SANCTUARY Restored! 28 December 2011 - Add a guideEradicatorDefeated 100 enemies. 28 December 2011 - Add a guideCHEMICAL PLANT Restored! 28 December 2011 - Add a guideGREEN HILL Restored! 28 December 2011 - Add a guideBright StarGot Rank S in an act. 28 December 2011 - Add a guideThe Opening ActCompleted the first stage. 28 December 2011 - Add a guide