Press pause and select Options. Under Game Options, choose "Enter Code" and enter the following words: The Hollow Lord (case sensitive).

Now, visit Vulgrim and The Harvester (Scythe) will be available for purchase under Weapons. You'll need 1000 Souls to purchase it -- and it's well worth the price!

Note: If you already have The Harvester unlocked and you enter in to the code you can get The Harvester for free.

Additions by Da Gharam Cracka