According to the brief information query of the game "Rebirth Cell", it can be obtained by breaking a specific enemy in the level with difficulty above 4, such as the Boss cellular enemy in the cell aggregation pool, or by online activities. There are six BOSS cells in Cell of Rebirth, namely: Watcher, Swelling beholder, Dark Tracker, Shield Holder, Time Keeper and Final BOSS. In addition to the final BOSS, every Boss has two forms, *** 12 BOSS.