Obtain all weapons.

Complete the main story on Professional mode.

Complete Separate Ways on Standard mode or higher.

Defeat Pesanta in Separate Ways.

Destroy all Clockwork Castellans.

Complete a game at the shooting range.

Complete the main story on Standard mode or higher.

Get the exclusive upgrade for a weapon.

Kill 2 parasites inside a Regenerador with a single bullet.

Parry an enemy with a knife.

Use a cannon to defeat a zealot.

Rescue Ashley as she's being carried away by the enemy.

Destroy a Clockwork Castellan.