God mode: Press Start to pause game play, then hold L
+ R and press A(2), B, A(5).
Information in this section was contributed by manakin8000.
Disable God mode: Press Start to pause game play, then hold L
+ R and press A(2), B, A, B(4).
Information in this section was contributed by Ledmeister.
Level skip: In single player games, press Start to pause
game play, then hold L + R and press A, B,
A(2), B(3), A.
Information in this section was contributed by Ledmeister.
Advance ten levels: In single player games, press Start to pause
game play, then hold L + R and press A, B,
A(2), B(2), A(2). You will advance ten levels,
depending on the current level. Note that there are only twenty
four maps in single player games; therefore this code will not
work when starting from maps higher than 14, "Halls Of The
Damned".
Information in this section was contributed by manakin8000
and Ledmeister.
Computer map: Press Start to pause game play, then hold L
+ R and press B, A(7)
Information in this section was contributed by manakin8000.
Radiation suit: Press Start to pause game play, then hold L
+ R and press B(2), A(6)
Information in this section was contributed by manakin8000.
Invincibility: Press Start to pause game play, then hold L
+ R and press B(3), A(5)
Information in this section was contributed by manakin8000.
Berserk: Press Start to pause game play, then hold L
+ R and press B, A, B, A(5)
Information in this section was contributed by manakin8000.
All weapons, items, keys: Press Start to pause game play, then hold L
+ R and press A, B(2), A(5).
Information in this section was contributed by manakin8000.
Hidden Military Base area: You can find this area in the Toxic Refinery (Episode
1 Level 3). Complete the first half of the level (before you enter
the blue door), then go back to the starting point. Look inside
the pool of radioactive waste and you should see a platform (if
you flipped all the switches in the first half). Walk across the
platform towards the wall it leads to. The wall will open and
you will have to defeat a series of enemies. Explore the secret
area more and you should find an exit door. Enter it and flip
the switch (the stats will not appear). You will now be an area
called the Military Base. Note: This area can be very difficult.
Information in this section was contributed by Cobrix2.
Hint: Using barrels: When entering any area that has several monsters of
any kind look for green barrels containing toxic waste. Take out
any gun and shoot the barrels to wipe out enemies quickly. Note:
Standing too close to a barrel of green waste and shooting it
can injure or kill you as well. Try to stand back when firing
at those barrels. Also, it usually takes more than one shot to
blow up a barrel from a distance.
Hint: Enemies:
Zombieman/Former Human soldier: They resemble your old friends,
but now they just fire pistols at you. They drop clips for the
chaingun and pistol when killed.
Shotgun Guy/Former Human Sergeant: Meaner and tougher. They carry
shotguns and do more damage then soldiers. They drop shotguns
when killed.
Imp: This creature throws fireballs and takes more bullets to
kill.
Demon: Appear in most areas and can rip your head off if you are
not careful. If you see more of them, use the chaingun.
Lost Soul: Floating, flaming skull.
Cacodemon: These creatures are ugly and have one big mouth. If
they see you, they will fire lightning balls from their mouth.
Use your rockets.
Baron Of Hell: Minotaur-like monster. They first appear at the
end of Episode 1.
