Blast Lock, a puzzle game with a metallic design. - Product Name: Blast Lock - Product Type: Puzzle I've played it once. I wrote on it, but erased it. There are no creases. You use a smartphone. Because it's on black paper, there might be some signs of use. It was sold out at Takarush, so I've listed it as a rare item. It's been stored at home, and there are no pets or smokers. Please understand that this is a used item. #Takarush #Puzzle #TakeHomePuzzle #RealEscapeGame #TreasureHuntAtHome #BlastLock #Rare #SoldOut #HardToFind #ChibinoKumaPuzzleCollection Thank you for looking.