Hidden Artwork
Place the game disc in a PC compatible CD-ROM drive to find .BMP images and two short voice samples in .WAV format in the "Omake" directory.
200 Hassy Drinks
Successfully complete and save the game. Then, start a new game from the saved game file to have 200 Hassy Drinks (100 small and 100 large) in the inventory. This should allow the game to be played with near-invincibility, and the additional bonus of not having to buy any other health items. Additionally, any money left from the last game will also be available in the new game.
Homing Ray
Successfully complete the game in between five to seven hours and save the game. Then, start a new game from the saved game file to receive the homing ray weapon.
Swimmer Mode
Successfully complete the game three times or more, and on the third time or higher through the game, complete zero to three of the four requirements for the "200 Hassy Drinks" code. Have Eliot drink at least five cups of the "Free Water" that is found in the Shower Operation Room of the Kimra Xenobiological Laboratory, then complete and save the game. In this mode, the characters normal clothes will be replaced by swimsuits and holding B will cause Eliot to swim.
Big Eyes Mode(North American Version)
Successfully complete the game on the "Hard" difficulty setting. In this mode, the characters will have big eyes and a big lip, and the weapon they are carrying will be visible.
All Weapons
Successfully complete the game twice or complete the game in under four hours and save the game. Then, start a new game from the saved game file to receive all weapons including a ray gun and bat, which are not available in any shop or vending-machine. The ray gun fires four heat-seeking lasers.
Mad Mode
Successfully complete the game three times and save the game. Then, start a new game from the saved game file. The phrase "Mad Mode" will appear next to the health bar. In this mode 200 Hassy Drinks, all weapons (including the ray gun), and full ammunition will be available.
Lab Card Passcode
Obtain the Lab card from Rat's Place, then return to Janean. Eliot will give Janean the Lab card and she will ask for the passcode, enter "0513" as the passcode.
Remote Bomb
At the title screen press: X, Y, A, R, START, L, START. This will give you the secret remote bomb weapon with infinite ammo.
Find a Metal Bat
To get the metal bat go to the place where you have to find Jeanene. Go to the room where there is a Goro looking creature. Behind it there are going to be 2 mutated bats. Kill them and get behind the box where the bats were you will find the metal bat and a big hassy next to it.
Hidden Characters
Beat the Game once. At the title screen, hold R, and press X, Y, B,A,L, then let go. When you start a new game, you can go up to anyone, even the monsters and the corpses, and hold L and R, then press X, B, A, Y. The screen with turn black for 1 second, then you will become that person. If you are a monster, the other monsters won't attack you, but if you are a corpse, then you will be attacked.
Lots 'O Cash
Fairly early in the game, it is possible to gain a large sum of money. This is done right after you get the napalm gun from the elevator.
1. Kill the huminoid just outside the lift for $70.
2. Go to map,save,vending machine room and buy arrow clip for $60.
3. Wash, Rinse, Repeat
$20000 in 20 minutes
Make sure that Eliot has his axe or stun rod, about and about 3 or 4 clips in his hand gun(this is also easier if Doggs has his rail gun). Go to the Bait and tackle shop and kill the creatures that attack you then go out side and do the full axe combo on the monster in the green t-shirt right outside the tackle shop door. This will kill him. You will then attract the attention of a monster wearing a white t-shirt this monster leaps at you but gives you $250 kill him away from the water and go in to the tackle shop and repeat. If you have about 20 small hassys you can get about $20000(no typo) in about 20 minutes. This is easier if you can lay down the full axe combo on the green guy because if he is still alive he and the leaper will team up on you. If things are getting ugly then switch to Doggs and Blast them with your rail gun. This takes a bit of practice but the rewards are great.
Bank Card Passcodes
Go to the Bank Of Kimra (across the street from Rat's Place) and enter the passcode for one of the following bank cards to access that account with the corresponding amount of money:
| Bank Card |
Passcode |
Amount |
| Eliot | 3532 | $20 |
| Kimra | 1008 | $4000 |
| Yucatan | 1861 | $5700 |
| Bermud | 1394 | $6000 |
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