Codes
Press the [Enter] key during play, and an input field appears. Then input the following cheat codes:

Icompletedthisghostgame - Carries you into the unreal world.

IfIwantIgotit 32 - Gives you items. The number at the end is the number of the item you want.

Seethesilverlining - Remove the darkness.

Showmetheworld - The whole card releases, and displays also the positions of the opponents, who disappear to darkness.

Thefierceunknownpower 99 - Increases Magic to 99

Thegreathealthpower 99 - Increases Health to 99

Thehealthyspiritpower 99 - Increases Brain to 99

Theoriginaldexteritypower 99 - Increases Dexterity to 99

Therealmusclepower 99 - Increases Strength to 99

ThesoulHunter'sholyPower 10 - Increases power to 99

Youcansaymoneyiseverything 10000 - Gives you bucks.

Yougainasoneplease 30 - Gives weapons. The number at the end is the number of the weapon that you want.

The cheats are case sensitive, and must be entered exactly as shown.

Repeat Item Cheat (Multiplayer ONLY)
Load Lamentation Sword on two or machines, start a network server (LAN) game on one machine and join the game on the other pc.The server has to be in the game !

Second machine:
Let's Say you want to have LOTS of money, drop all the money you have and crash the game (CTRL+ESC), now re-enter the game. You still have what you had before, and the item that you dropped!. In order to repeat this process you have to exit the game normally, do this over and over, you'll see.