Speak to Sylvia

Finish off all survivors and win the game.

Escape the raider's pursuit and survive three times in one match.

Find two super time machine power keys in one match.

Reach the 4th Stage as a raider.

Finish off five civilians in one match as a raider. (Some raiders rescue civilians instead.)

Open five red item boxes in one match.

Rescue five civilians in one match as a survivor.

Use an active skill as a survivor.

Buy something in the shop.

Change your costume.

Earn the right to take on three-star assignments.

Completed the "All Points Bulletin" side quest.