Mystery Box: Hidden Secrets Achievements Here is the full list of all 18 Mystery Box: Hidden Secrets achievements worth 1,000 gamerscore.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 What are achievement flags? Click to find outApply UnboxingCollect all achievements PuzzlingFinish the Tutorial Metal BoxComplete all Metal Box levels Bells and whistlesCollected all Metal Box invention tiles Velvet BoxComplete all Velvet Box levels Moving pictureCollected all Velvet Box invention tiles Black BoxComplete all Black Box levels In the airCollected all Black Box invention tiles Pearl BoxComplete all Pearl Box levels WingedCollected all Pearl Box invention tiles Wooden BoxComplete all Wooden Box levels MobileCollected all Wooden Box invention tiles Glass BoxComplete all Glass Box levels ProcessingCollected all Glass Box invention tiles Stone BoxComplete all Stone Box levels SnappyCollected all Stone Box invention tiles PioneerReveal 4 inventions InventorReveal all inventions