Beginner fighting difficulty setting
Intentionally die twice during game play under the normal fighting difficulty setting. The fighting difficulty setting can now be set to "Beginner" in the extra options menu.
Life display option
Successfully complete the game under the hard difficulty setting to unlock "Life Display" at the extra options screen.
Kill all monsters with any weapon except melee ones, preferably the unlimited sub machine gun (a special weapon).
Unlock up to ten Extreme Action Mode games
Finish the game in hard action mode to unlock Extreme Action Mode 1 (an increased difficulty mode). Finish Extreme Action Mode 1 to unlock Mode 2, etc. Continue doing this until you unlock the last one, Extreme Action Mode X. If you finish this last mode you will be rewarded with the God Of Thunder T-shirt.
Brookhaven Hospital: Second lobby door password
The password is an easy math problem. The first digit is greater than the second digit. The second digit is the third digit multiplied by two. The third digit is half of the first digit. The solution is 8 6 3 4, under the normal action and normal riddle difficulty settings. The solution under the easy difficulty setting is 4 6 3 9. The solution under the hard difficulty setting is 4 8 9 6.
Brookhaven Hospital: Third lobby door password
For this, go to floor B, then to the storeroom . Go to the end of the room and take a photo of the bloody wall with a shelf near it. The solution is 4 7 5 6, under the normal action and normal riddle difficulty settings. The solution under the hard difficulty setting is 1 3 2 8.
Brookhaven Hospital: Crematory puzzle
The solution under the hard riddle difficulty setting is 9 2 7 1. The solution under the normal difficulty setting is: 9 3 6 7.
Brookhaven Hospital: 33rd floor lock password
The solution to the puzzle is about some birds . The order is Wren, Owl, Linnet, Sparrow. The solution is 9 2 7 1 under the hard riddle difficulty setting.
Brookhaven Hospital: Hidden ammunition
For sub machine gun ammunition, go to the hospital roof.
Order of tarot cards at the last door of the game
Arrange the cards as follows in the normal action and normal riddle difficulty settings:
Northwest position: Eye Of The Night
Northeast position: Moon
West position: High Priestess
East position: Fool
South position: Hanged Man
Arrange the cards as follows in the hard difficulty setting.
Northwest position: The High Priestess
North position: The Eye Of The Night
Center position: The Fool
East position: The Moon
Southwest position: The Hanged Man
The riddle is a problem with Roman numerals. The Priestess is number II (2) as read on the book about tarots. The Eye Of The Night is XXII (22). The Fool is 0. The Moon is XVIII (18). The Hanged Man is XII (12). Look in the book of drawings to see that XVIII can stay only in the east position (the last letter is I instead of L); XII is only in the southwest position; II is only in the northwest position; 0 and XXII have two places where they can stay. Swap them until you find their correct place.
Kill 333 enemies. Playing through the game several times will achieve this. Note: Wear the Transform costume to change the Heather Beam into the Sexy Beam.
Successfully complete the game under the hard action and hard riddle difficulty settings to unlock the "Life Bar" option at the extra options screen.
Heather looking dead
Equipping the God Of Thunder costume allow Heather or Cheryl to look like one of the evil Heathers in the Amusement Park. When you get to the scene where Heather will "eat" her pendant, you will see some kind of lettering on her fingers.
Special weapon locations
Once you unlocked the following Special weapons they can be found at their respective places: Beam Saber - At the end of the hallway where you get the bookstore key; hanging on the door. Flamethrower-In - Helen's Bakery (where you get the tongs); on the counter. Infinite Ammo Sub Machine Gun - Immediately after exiting out of the bathroom window (after the start of the game) go left; it is at the dead end. Heather Beam - After obtaining it, you always have it. You can use it when no weapon is equipped. Silencer - After the sewer, go to the apartment 5F. You will see a room with a big hole. There is mattress near the hole. To the right of it is a wall that that has a light blue color section. Use a pipe to break the wall and get the silencer.
Unlock the Flamethrower, Beam Saber, and Sub Machine Gun with just one game played completely
Finish the game and save your results. You should have at least one special weapon unlocked (Beam Saber, Unlimited Sub Machine Gun, or Flamethrower). Then, load your saved game again. Finishing the game the second time with the same save will unlock the Flamethrower (if you do not have it). Finish the game the third time, but kill the last Boss, Claudia, with only melee weapons such as the Maul or the Katana. After that, you will unlock the Unlimited Sub Machine Gun. Note: If you do not have the Beam Saber, then in the third time through kill the last Boss, Claudia, with long range weapons such as the shotgun or the sub machine gun.
When the intermission sequence between Claudia and Vincent is finished and Vincent dies, use the necklace on Claudia.