Find 25% of all documents.

Complete one optional tomb.

Finish the game saving Chris and Barry using Jill.

Finish the game on Very Easy difficulty or higher.

Save Chris from confinement using Jill.

Save Barry from Lisa Trevor.

Defeat Yawn using Jill.

Obtain the Helmet Key using Jill.

Burn up a zombie.

Survive your first encounter with Yawn.

Defeat a zombie.

Repel 3 Outpost Retaliation Parties (Campaign only).

Spend 500,000 rupees total at Trading Posts (Campaign only).