Throw something as far as you can.

Collect all Trophies

Kill 15 enemies with melee attacks

Shoot an airborne grenade during Blacksight

Complete the game (any difficulty)

Inspect all photographs and documents

Collect all phonograph cylinders

Kill 10 Lycans

Kill an enemy with every weapon

Kill 100 enemies with a headshot

Kill 40 enemies with science weapons

Kill 5 enemies with a headshot during Blacksight

Complete Mission 10