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. 01 December 2012 - Add a guideMission Accomplished!Cleared all the missions. 01 December 2012 - Add a guideMad SkillzGot all custom skills. 01 December 2012 - Add a guideBonds of FriendshipCompleted all of Sonic's friends' Challenges. 01 December 2012 - Add a guideTime AttackerPlayed Time Attack on all stages. 30 November 2012 - Add a guideBig BangGot Rank S in all acts. 30 November 2012 - Add a guideSecret Sleuth 30 November 2012 - Add a guideRed Ring CollectorGot all Red Star Rings. 30 November 2012 - Add a guideHalfway PointCleared half the missions. 30 November 2012 - Add a guideColor Power! 30 November 2012 - Add a guideLook Both Ways 30 November 2012 - Add a guideBlue CometGot Rank S in acts 12 times. 30 November 2012 - Add a guideThe Byway or the Highway 30 November 2012 - 1 guideAction HeroPerformed all of Sonic's actions in Act 2. 30 November 2012 - Add a guideCan't Touch ThisTook no damage while defeating the final boss. 23 September 2012 - 2 guidesSupersonic! 23 September 2012 - Add a guideAll Stages Clear!Cleared Sonic Generations. 23 September 2012 - Add a guideTreasure Hunter 21 September 2012 - Add a guideBoom Boom Dragoon 21 September 2012 - Add a guideBlazing MeteorGot Rank S in acts seven times. 21 September 2012 - Add a guideSilver Got Served 20 September 2012 - Add a guideShadow Boxing 20 September 2012 - Add a guideWalkie TalkieChatted with all of Sonic's friends you saved. 20 September 2012 - Add a guidePLANET WISP Restored! 20 September 2012 - Add a guideROOFTOP RUN Restored! 20 September 2012 - Add a guideA Quick Breather 20 September 2012 - 1 guideCRISIS CITY Restored! 17 September 2012 - Add a guidePerfect Punisher 17 September 2012 - Add a guideSEASIDE HILL Restored! 17 September 2012 - Add a guideCITY ESCAPE Restored! 15 September 2012 - Add a guideDemolition Derby 15 September 2012 - Add a guideSPEED HIGHWAY Restored! 08 September 2012 - Add a guideSunny side up 08 September 2012 - Add a guideScrap Metal 08 September 2012 - Add a guideWalk on WaterCleared CHEMICAL PLANT without entering the water. 08 September 2012 - 1 guideSKY SANCTUARY Restored! 08 September 2012 - Add a guideWalk on Air 08 September 2012 - Add a guideCHEMICAL PLANT Restored! 08 September 2012 - Add a guideShooting StarGot Rank S in acts three times. 08 September 2012 - Add a guideTrickstarExecuted a trick with a seven-step combo or longer. 08 September 2012 - 1 guideGreased LightningCleared Green Hill within one minute. 08 September 2012 - 1 guideEradicatorDefeated 100 enemies. 08 September 2012 - Add a guideJoin the RanksJoined the rankings. 08 September 2012 - Add a guideA 30-Second TestParticipated in a 30 Second Trial. 08 September 2012 - Add a guideRing KingReached the goal without dropping any of the rings you collected in GREEN HILL Act 1. 08 September 2012 - Add a guideJump for Joy!Found the spring hidden in GREEN HILL Act 1 and reached the goal with a Red Star Ring. 08 September 2012 - Add a guideGREEN HILL Restored! 08 September 2012 - Add a guideBright StarGot Rank S in an act. 08 September 2012 - Add a guideThe Opening ActCompleted the first stage. 08 September 2012 - Add a guide