To defeat Beliar, you should have guns, and grenades. The blades do not work on him. Use the Magic Eye to find Beliar's weak point and shoot it. When you run out of guns, shoot the grenades at him. He must be defeated quickly, because if he powers up enough, you will lose. After Beliar is dead, go after Wulf. He will run around the room and attack you. Hit him as much as possible. After a few hits, Rayne will stop and say "That was for Mynce". Wulf will tell her that she is pathetic, and the fight will continue. Repeatedly hit Wulf to win.
Defeating the Hondrox
When you are fighting the Hondrox you must break down the pillars (long wooden objects) and the floor will fall . Do this twice to complete the level.
Enemy Freeze
Enter DONTFARTONOSCAR as a code to unlock the "Enemy Freeze" option at the cheat menu. A message will confirm correct code entry.
Fill Bloodlust
Enter ANGRYXXXINSANEHOOKER as a code to unlock the "Fill Bloodlust" option at the cheat menu. A message will confirm correct code entry.
God Mode
Enter TRIASSASSINDONTDIE as a code to unlock the "God Mode" option at the cheat menu. A message will confirm correct code entry.
Gratuitous Dismemberment
Enter INSANEGIBSMODEGOOD as a code to unlock the "Gratuitous Dismemberment" option at the cheat menu. A message will confirm correct code entry.
Indiana Jones reference
In one of the small corner rooms in the Nazi part of the game, you can break a box to find the Ark Of The Covenant from Raiders of the Lost Ark.
Juggy
Enter JUGGYDANCESQUAD as a code to unlock the "Juggy" option at the cheat menu. A message will confirm correct code entry.
Level Select
Enter ONTHELEVEL as a code to unlock the "Level Select" option at the cheat menu. A message will confirm correct code entry.
Programmer messages
Enter one of the following codes to view a programmer message.
Enter LAMEYANKEEDONTFEED as a code to unlock the "Restore Health" option at the cheat menu. A message will confirm correct code entry.
Secret Louisiana level
To unlock the secret level, at the cheat menu enter the code: BRIMSTONEINTHEBAYOU.
Show Weapons
Enter SHOWMEMYWEAPONS as a code to unlock the "Show Weapons" option at the cheat menu. A message will confirm correct code entry.
Suicidal Mynce
When you are fighting Mynce in the level Teachers and Traitors, keep killing her until you reach the outer area with broken staircases. An easy way to end this fight is to jump into the air (rebound kick for extra distance if necessary). Mynce will jump after you and fall to her death.
Take note that this will NOT kill Rayne if you manage to keep her in the air long enough for Mynce to jump after you. After the cutscene, Rayne will be standing on the bottom platform as she would be if you defeat Mynce the normal way.
Thank you message
Enter TERMINALREALITYRULES as a code for a "thank you" message.
Time Factor
Enter NAKEDNASTYDISHWASHERDANCE as a code to unlock the "Time Factor" option at the cheat menu. A message will confirm correct code entry.
