Young Justice: Legacy Achievements Full list of all 48 Young Justice: Legacy achievements worth 1,000 gamerscore. It takes around 20-25 hours to unlock all of the achievements on Xbox 360.Filter Achievement View View Image viewList view Sort by TrueAchievement desc TrueAchievement asc Achievement name desc Achievement name asc GamerScore desc GamerScore asc TA Ratio desc TA Ratio asc Gamers desc Gamers asc Xbox.com order Date won desc Date won asc Flag Filter All None 5 Offline Mode 43 Online/Offline 44 Single Player 43 Cooperative 48 Host Only 11 Main Storyline 1 Difficulty Specific 5 Collectable 1 Cumulative + 3 Level 2 Shop 1 Time/Date 1 Multiple Playthroughs Required Link flagsOR joinAND join Achievements without these flags What are achievement flags? Click to find outApply Daddy’s Little GirlDefeat Cheshire 2 guidesMatch DayDefeat Sportmaster 1 guideCold WarDefeat Killer Frost 1 guideTag TeamDefeat Icicle Jr and Sportmaster 1 guideWelcome to la junglaDefeat Bane 1 guideSecrets from the DeepDefeat Black Manta 1 guideTwisted MindDefeat Psimon Riddle me this!Defeat The Riddler 1 guideBusted BlockDefeat Blockbuster A Death in the FamilyFinish the game LegacyComplete the game on Hard Difficulty 2 guidesReady for Spring BreakObtain A Grades in half of the Missions Graduate with HonorsObtain A Grades in all Missions 1 guideSrewoprepus!Use all the powers of the heroes 1 guideWho’s going to pay for that?Destroy 350 objects 1 guideManeuver 7!Activate Squad Boost 20 times 1 guideKa-Pow!Defeat the first 15 enemies 1 guideHitting HenchmenDefeat 200 enemies 1 guideNo room in Belle ReveDefeat 500 enemies 1 guideSidekickReach level 10 1 guideSuperheroReach level 20 Justice League MemberReach level 40 1 guideJustice PartnersComplete 1 mission co-op mode Justice AlliesComplete 5 missions co-op mode Justice TeamComplete 10 missions co-op mode United We StandComplete all missions in co-op mode 1 guideSouvenir!Get half the Dioramas 1 guideCollectionGet all the Dioramas 1 guideThe Quest for Roy HarperGet all Red Arrow Journals 1 guideSunday BestCollect half of the Alternate Costumes 1 guideMardi GrasCollect all the Alternate Costumes 1 guideInduction PartyUnlock all characters 2 guidesBlack Canary sales!Buy half of the enhancements Out of stockBuy all enhancements 1 guideTraining RoomComplete 1 challenge Staying WhelmedComplete half of the challenges No Match, not even in CadmusComplete all challenges 2 guidesChallenge MasterGet 50% A Grades in YJ Challenges Apple of Black Canary's eyeGet all A Grades in YJ Challenges 2 guidesWinning StreakAnswer 5 Young Justice Trivia questions correctly in a row 1 guideTrivia ApprenticeReach a Score of 500 in the YJT Trivia ExpertReach a Score of 1000 in the YJT Trivia MasterReach a Score of 5000 in the YJT 2 guidesArt Preservation SocietyDon’t break any Statue in the Museum Stage during “A Hostage Crisis” 2 guidesHurry Up!Escape the Avalanche Stage during “Go with the Flow” in less than 5 minutes 1 guideIt’s a trap!Avoid damage from the spike trap in Atabey's Temple Stage during “The Goddess Shrine” 1 guideOne with the ShadowsAvoid search light in Gotham Docks Hide and SeekDon't activate the Statues in The Warriors Stage during “Tag Team” 1 guide