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 wonMad SkillzGot all custom skills. 22 April 2013 - Add a guide(Hedge)Hogging It All Up!Got all collectibles. 22 April 2013 - Add a guideMission Accomplished!Cleared all the missions. 22 April 2013 - Add a guideBonds of FriendshipCompleted all of Sonic's friends' Challenges. 22 April 2013 - Add a guideHalfway PointCleared half the missions. 22 April 2013 - Add a guideRed Ring CollectorGot all Red Star Rings. 21 April 2013 - Add a guideColor Power! 21 April 2013 - Add a guideA Quick Breather 21 April 2013 - 1 guideSecret Sleuth 21 April 2013 - Add a guideThe Byway or the Highway 21 April 2013 - 1 guideTime AttackerPlayed Time Attack on all stages. 13 April 2013 - Add a guideSupersonic! 13 April 2013 - Add a 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 guideBig BangGot Rank S in all acts. 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. 12 April 2013 - 1 guideWalk on Air 12 April 2013 - Add a guideBlazing MeteorGot Rank S in acts seven times. 12 April 2013 - Add a guideGreased LightningCleared Green Hill within one minute. 12 April 2013 - 1 guideCan't Touch ThisTook no damage while defeating the final boss. 12 April 2013 - 2 guidesAll Stages Clear!Cleared Sonic Generations. 12 April 2013 - Add a guideTreasure Hunter 12 April 2013 - Add a guideSilver Got Served 12 April 2013 - Add a guideShadow Boxing 12 April 2013 - Add a guideScrap Metal 12 April 2013 - Add a guideBoom Boom Dragoon 12 April 2013 - Add a guideWalkie TalkieChatted with all of Sonic's friends you saved. 12 April 2013 - Add a guidePLANET WISP Restored! 12 April 2013 - Add a guideROOFTOP RUN Restored! 12 April 2013 - Add a guideCRISIS CITY Restored! 12 April 2013 - Add a guideLook Both Ways 12 April 2013 - Add a guidePerfect Punisher 12 April 2013 - Add a guideSEASIDE HILL Restored! 07 December 2012 - Add a guideAction HeroPerformed all of Sonic's actions in Act 2. 07 December 2012 - Add a guideCITY ESCAPE Restored! 07 December 2012 - Add a guideDemolition Derby 07 December 2012 - Add a guideSPEED HIGHWAY Restored! 28 November 2012 - Add a guideShooting StarGot Rank S in acts three times. 28 November 2012 - Add a guideA 30-Second TestParticipated in a 30 Second Trial. 28 November 2012 - Add a guideSunny side up 28 November 2012 - Add a guideJoin the RanksJoined the rankings. 28 November 2012 - Add a guideSKY SANCTUARY Restored! 28 November 2012 - Add a guideCHEMICAL PLANT Restored! 28 November 2012 - Add a guideEradicatorDefeated 100 enemies. 28 November 2012 - Add a guideTrickstarExecuted a trick with a seven-step combo or longer. 28 November 2012 - 1 guideBright StarGot Rank S in an act. 28 November 2012 - Add a guideRing KingReached the goal without dropping any of the rings you collected in GREEN HILL Act 1. 28 November 2012 - Add a guideGREEN HILL Restored! 28 November 2012 - Add a guideThe Opening ActCompleted the first stage. 28 November 2012 - Add a guide