Question: how to unlock all characters in jump ultimate stars?
Answer: Allen ... Unlock when you collect more stars than your opponent before the time runs out on the D.gray.man first mission. Don patch ... Avoid being hit for at least 2 minutes in the 2 mission of bo-bobo. Gohan ... ...  Gon ... ...  Hitsugaya ... ...  Ichigo ... ...  Kakashi ... ...  Kazuki ...