Leave the clock tower plaza.

Defeat zombie Brad.

Improve a weapon.

Cause Nemesis to relinquish an item.

Defeat two enemies with a single shot.

Craft an item.

Escape from Jill's apartment building.

Pass through an Exit during Overtime using any Survivor character.

Complete the Mastermind tutorial.

Clear a special mission for the first time.

Win in VS Mode for the first time.

Perform an Emergency Escape in VS Mode.