Exchange list:

• Saiga 308: Nova Medal x400
• CMR-30: Nova Medal x400
• DSR-50: Platinum Medal x500
• P2000: Platinum Medal x500
• Strawberry Custard Cheesecake (200 in stock): either medal x5

Medal & exchange rules:

• Obtained upon scoring an S-rank victory on maps with 4/5-star limited drop T-Dolls.
• Obtained upon defeating an enemy that has a 4/5-star limited drop with an S-rank victory.
• In normal stages:
  • 1 Nova Medal for every 4-star limited drop.
  • 1 Platinum Medal for every 5-star limited drop.
• In EX/UX stages:
  • 2 Nova Medal for every 4-star limited drop.
  • 2 Platinum Medal for every 5-star limited drop.
• In scoring stages:
  • 1 Nova Medal for every 4-star limited drop.
  • 1 Platinum Medal for every 5-star limited drop.
• There's no limit to the number of medals you can earn.
• 400 Nova Medals for 1 limited 4-star T-Doll.
• 500 Platinum Medals for 1 limited 5-star T-Doll.
• Each T-Doll can only be exchanged once.