Ancient Amuletor (HP)

Explosive barrels are scattered throughout the levels. They look just like you would expect, a big red barrel. You have two options to get kills with them, you can either shoot the barrel when an enemy is near or on some levels you can shoot the wooden man trap and it will throw a barrel which kills enemies on impact. Do either of these actions or a combination of the two to kill 20 enemies and the trophy is yours. The trophy is cumulative across playthroughs, characters, and multiplayer as well.