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Duke Nukem
Press [Backspace] and [Pagedown] at the same time and you will get all
the keys and full fire power.


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Paganitzu
Press F1. After the menu screen has appeared, hold down [Ctr]l, A & L at
the same time. A message will appear, asking for a three digit code.
 325 Awards Al 99 lives
 589 Lets you skip to the ending sequence
 822 Doubles the point value of the gems and keys
 7xx Skips to room xx 

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Comander Keen 1 - 3
Press  G, O & D at the same time to go into the GOD mode.
Press  C, T & [Space Bar] at the same time to get all the keycards, a pogo
stick and alot of ray gun charges.
If you want to bypass an very difficult city press the [Shift] & [Tab] at
the same time as you walk through the city

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Comander Keen 4 & 5
Press T, A & B at the same time and you will get lots of shots, Keygems and
an extra Keen
Press A, 2 & [Enter] to get into the debug mode.
 F10 & J - Jump mode
 F10 & I - Free items
 F10 & N - No clipping (Dangerous if you are on the floor, you will disappear)
 F10 & G - God Mode
 F10 & W - Warp to levels 1 - 18

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Comander Keen 6
Press F10 and a letter and it does unusual things.
 F10+N walk through walls and ground
 F10+G god mode (invincibility)
 F10+I free items
 F10+B border color

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Secret Agent
Press K, U & V at the same time will give you unlimited bullets.
Press Z, I & G at the same time will give you the floppy disk and dynamite.
Press P, J & X at the same time will put you in GOD mode.
Press P, O, N & D at the same time to use Warp mode.

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Cosmo
Press [Tab], [Delete] & [F12] at the same time. You are now in cheat mode.
 F10 & G - for God mode toggle
 F10 & W - for warping to other levels
 F10 & M - for memory usage
Press C, 0 & F10 to get mximum health and bombs.

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Wolfenstein 3-D
Pressing I, L & M at the same time gives you full health, all the weapons
and full ammo, but your score goes to 0.

To enter the cheat or debug mode, do the following:

1.  Invoke Wolfenstein 3-D with the "next" parameter (wolf3d -next)
    if you have version 1.0, if you have version 1.1, 1.2 or the 
    registered games use the "GOOBERS" parameter (wolf3d -GOOBERS).
    You can also use whatever other command-line parameters you want.

2.  Begin or restore a game.  While in the game, hold down the TAB,
    CONTROL, and ENTER keys simultaneously if you used the "next"
    parameter or LEFT SHIFT, ALT and BACKSPACE if you used the 
    "goobers" parameter.  You should get a message stating that
    debugging keys are now available.

That's it!

To use debugging mode commands, hold down the TAB key and one of the
letter keys listed below simultaneously:

B - Changes the screen border color.  Don't ask me why it's here, but
    it's here.

C - Displays the number of statics, doors, and actors in the level.  I
    believe that statics are things like food and ammo that you can
    pick up, and actors are the bad guys.  Doors should be
    self-explanatory.

E - Moves you ahead two levels.  That's right, not one level, but two.
    The W command (see below) seems to supercede this one.  Perhaps I'm
    missing something.

F - Displays your current position on the level (X,Y) and orientation (A).
    Seems to work only on version 1.0.

G - Turns what Id calls "GOD mode" on and off.  Basically it just
    means that you're invincible.

H - Hurts you (-16% health).  Not much use to us, but I guess Id had
    to debug their damage code just like everything else.

I - "Free items."  Ups your health, ammo, and score, and gives you the
    next most powerful weapon.  (Machine gun if you didn't have it,
    Big Grin if you did.)

M - Displays memory usage.  Loads of fun.

N - Turns "No clipping" on or off.  This lets you walk through walls.
    Wall-walking does STRANGE things to the graphics (try approaching a
    door from the side and opening it).  It also does strange things
    to the bad guys.  If you walk into a room through the wall, often
    they won't notice you at all, even if you walk right in front of
    them or fire your machine gun (in some direction besides at them,
    of course).

O - Changes the main viewscreen to a map of the current level, which
    you can scroll through using the movement keys or the mouse.  It's
    neat, but I wish that it wasn't so ugly.  Those numbers are from
    the internal level format.  ESC will get you out.

P - Pauses the game, without putting up the little "Paused" window.
    Useful for getting a screen shot, I guess.

Q - Bombs my machine.  Let me know if it works on yours.

S - Turns slow motion on or off.  If you have a slow computer you
    don't need this.

T - Pops up a window which displays graphics and sounds from the game.
    Use the left and right arrow keys to page through the entries.
    If you come to a blank entry, keep going.  You'll know when you've
    reached the end (500-something) because you won't be able to go
    any higher.  ESC exits.

V - Asks you how many extra VBLs you want.  High values seem to make
    the game sluggish and not much else.

W - Warps to any level.  10 is the secret level.  If you didn't know
    there was a secret level then YOU SHOULDN'T BE READING THIS.

X - "Extra stuff."  It definitely does something, but I can't figure
    out what.  Let me know what you find.

That enough commands for you?  By the way, there also appears to be a
"Demo recording" mode, but it can't be entered from debugging mode.

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