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 won(Hedge)Hogging It All Up!Got all collectibles. 18 April 2013 - Add a guideMad SkillzGot all custom skills. 18 April 2013 - Add a guideRed Ring CollectorGot all Red Star Rings. 18 April 2013 - Add a guideTime AttackerPlayed Time Attack on all stages. 18 April 2013 - Add a guideSecret Sleuth 17 April 2013 - Add a guideMission Accomplished!Cleared all the missions. 17 April 2013 - Add a guideBonds of FriendshipCompleted all of Sonic's friends' Challenges. 11 April 2013 - Add a guideBig BangGot Rank S in all acts. 11 April 2013 - Add a guideWalk on Air 11 April 2013 - Add a guideLook Both Ways 07 April 2013 - Add a guideWalk on WaterCleared CHEMICAL PLANT without entering the water. 07 April 2013 - 1 guideGreased LightningCleared Green Hill within one minute. 07 April 2013 - 1 guideCan't Touch ThisTook no damage while defeating the final boss. 05 April 2013 - 2 guidesRing KingReached the goal without dropping any of the rings you collected in GREEN HILL Act 1. 30 March 2013 - Add a guideSupersonic! 30 March 2013 - Add a guideHalfway PointCleared half the missions. 29 March 2013 - Add a guideColor Power! 29 March 2013 - Add a guideBlue CometGot Rank S in acts 12 times. 29 March 2013 - Add a guideThe Byway or the Highway 29 March 2013 - 1 guideA Quick Breather 29 March 2013 - 1 guideDemolition Derby 29 March 2013 - Add a guideJump for Joy!Found the spring hidden in GREEN HILL Act 1 and reached the goal with a Red Star Ring. 29 March 2013 - Add a guideAll Stages Clear!Cleared Sonic Generations. 29 March 2013 - Add a guideTreasure Hunter 29 March 2013 - Add a guideBoom Boom Dragoon 29 March 2013 - Add a guideA 30-Second TestParticipated in a 30 Second Trial. 29 March 2013 - Add a guideSilver Got Served 27 March 2013 - Add a guideWalkie TalkieChatted with all of Sonic's friends you saved. 27 March 2013 - Add a guidePLANET WISP Restored! 27 March 2013 - Add a guideAction HeroPerformed all of Sonic's actions in Act 2. 27 March 2013 - Add a guideROOFTOP RUN Restored! 27 March 2013 - Add a guideCRISIS CITY Restored! 27 March 2013 - Add a guideJoin the RanksJoined the rankings. 27 March 2013 - Add a guidePerfect Punisher 25 March 2013 - Add a guideShadow Boxing 25 March 2013 - Add a guideSEASIDE HILL Restored! 25 March 2013 - Add a guideCITY ESCAPE Restored! 25 March 2013 - Add a guideSPEED HIGHWAY Restored! 25 March 2013 - Add a guideBlazing MeteorGot Rank S in acts seven times. 25 March 2013 - Add a guideSunny side up 25 March 2013 - Add a guideScrap Metal 25 March 2013 - Add a guideSKY SANCTUARY Restored! 25 March 2013 - Add a guideEradicatorDefeated 100 enemies. 25 March 2013 - Add a guideCHEMICAL PLANT Restored! 25 March 2013 - Add a guideShooting StarGot Rank S in acts three times. 25 March 2013 - Add a guideGREEN HILL Restored! 25 March 2013 - Add a guideTrickstarExecuted a trick with a seven-step combo or longer. 25 March 2013 - 1 guideBright StarGot Rank S in an act. 25 March 2013 - Add a guideThe Opening ActCompleted the first stage. 25 March 2013 - Add a guide