When your Hero is ranked to 5 stars, you can start collecting excess DNA Fragments. For each additional DNA Fragment you have, you can convert them for Database Credits in the Shop or by selecting the Hero.
  • 1 Common DNA Fragment = 40 Database Credits
  • 1 Rare DNA Fragment = 60 Database Credits
  • 1 Epic DNA Fragment = 80 Database Credits,
  • 1 Legendary DNA Fragment = 100 Database Credits.
You can use Database Credits to purchase DNA Fragments for other Heros in the Daily Selection of the Shop.