Defeat 16 bats in the church.

Defeat Mimicry Marcus for the first time only using a knife.

Complete the training facility.

Play the piano using Rebecca.

Shoot down a Hunter or an Eliminator while they are jump attacking in the air.

Try to push something heavy with Rebecca.

Defeat Mimicry Marcus with a Molotov Cocktail or a Napalm Grenade.

Destroy a zombie's legs.

Complete the train.

Defeat an enemy with a critical-hit headshot.

Attack an enemy to save your partner who is grappling with that enemy.

Break free of a Cerberus while they are biting you or trying to push you down.

Equipped all three types of talismans at one time.