This game modern form of well known children's card trade game that we all used to play in our childhood.. :).The main trade object in this game is bike. NFC is required to play this game. It is very good game for kids who cant trade real bikes but bikes in form of cards and signals.. SO friends just have fun in trading bikes. HAPPY NEWYEAR WITH THIS NEW DOWNLOAD...Also don't forget to review below so that I can improve this game....