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These Cheat Codes will work with ALL 3 Commander Keen: Invasion of the Vorticons Titles.
Marooned on Mars, Earth Explodes & Keen Must Die!

[C+T+Spacebar] - Gives pogostick, all keycards, and full ammo.
[Shift+Tab] - Pass through an unplayed level on world map.
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These Debug Mode Codes will work with ALL 3 Commander Keen: Invasion of the Vorticons Titles.
Marooned on Mars, Earth Explodes & Keen Must Die!

[G+O+D] - Pressing all three of these at the same time will put you in god mode,
and will give you a "jump cheat," which means when you press "jump," you fly.
==============================================

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These Cheat Codes will work with Both Commander Keen: Goodbye Galaxy Titles.
Secret of the Orcale & Armageddon Machine.

Pressing the [B+A+T] keys all at once will give you 99 shots for your Blaster Pistol,
an extra life & all the gems.
(This does not work on early versions of Aliens Ate My Babysitter.)
==============================================

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These Debug Mode Codes will work with Both Commander Keen: Goodbye Galaxy Titles.
Secret of the Orcale & Armageddon Machine.

Pressing [A] [2] [enter] all at once will activate debug mode.
(Early versions of the game do not require this step.)
Once activated, these keys will perform the following functions:

[F10+G] - God mode
[F10+I] - Free items
[F10+J] - Jump cheat
(Note that you will not be able to jump down while the jump cheat is activated)

[F10+N] - No clipping
(Be careful. If you fall off the bottom of the level, you'll die, even if you are in God Mode.)

[F10+Y] - View hidden areas in the level.
[F10+B] - Set border color (1-15)
[F10+C] - Show number of active/inactive objects in the level
[F10+D] - Record a demo
[F10+E] - End the current level
[F10+M] - Display memory usage
[F10+S] - Slow motion
[F10+T] - Sprite test
[F10+V] - Add 0-8 VBLs (Vertical Blanking Signal, this will do nothing for most users)
[F10+W] - Warp to any level
[F10+Y] - Reveal hidden areas

(NOTE: These will also work for Keen Episode 6: Aliens Ate My Babysitter.)
==============================================

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Level Warp Codes:
Enter the Level Warp Code (F10+W) during play to be prompted to enter one of the following numbers to instantly transport to its corresponding level. Levels 6, 8, 11, and 13 have no names, are not accessible during normal play, and all contain the same layout and items.

Apple Acres = 09
Boobus' Chamber = 15
Bridge Bottoms = 03
Brussels Sprout Bay = 12
Castle Tuberia = 16
Grape Grove = 10
Horseradish Hill = 01
Level 11 = 11
Level 13 = 13
Level 6 = 06
Level 8 = 08
Parsnip Pass = 05
Rhubarb Rapids = 04
Spud City = 07
Squash Swamp = 14
The Land of Tuberia (World Map) = 00
The Melon Mines = 02
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Various Cheats:
Press both keys shown at once during gameplay to activate the cheat.

Free Items = [F10+I]
God Mode = [F10+G]
Jump Higher = [F10+J]
Slow Gameplay = [F10+S]
Warp to Next Level = [F10+W]
==============================================

The Standard Galactic Alphabet, also known as SGA, is the writing system used to depict Omnispeak, the alien language of choice in the galaxy in all 7 Commander Keen Games.

Here's a document showing the Entire SGA:

See "2-1. Commander Keen 4-5: Goodbye Galaxy! Cheat Codes" for Details.

See "2-2. Commander Keen 4-5: Goodbye Galaxy! Debug Mode" for Details.

The second-dumbest creature in the universe, this creature's thought patterns go "swim swim hungry, swim swim hungry." They'll eat anything alive and moving near them, though they prefer heroes.

The Dopefish has made cameo appearances in numerous other video games. A list of these can be found on The Dopefish's official website:
http://www.dopefish.com/

Duke Nukem Forever Sighting:
http://steamproxy.com/sharedfiles/filedetails/?id=514616798

Commander Keen Goodbye Galaxy Installer
http://steamproxy.com/sharedfiles/filedetails/?id=634743422


The Dopefish has now been sighted in some HE Games if the player chooses to draw him:
Fatty Bear's Birthday Surprise
http://steamproxy.com/sharedfiles/filedetails/?id=371152932

Freddi Fish 2: Case of the Haunted Schoolhouse
http://steamproxy.com/sharedfiles/filedetails/?id=361877394

Spy Fox 1: Dry Cereal
http://steamproxy.com/sharedfiles/filedetails/?id=254410577

Big Thinkers Kindergarten
http://steamproxy.com/sharedfiles/filedetails/?id=621195849

Big Thinkers 1st Grade
http://steamproxy.com/sharedfiles/filedetails/?id=624439875

Putt-Putt 7: Pep's Birthday Surpirse
http://steamproxy.com/sharedfiles/filedetails/?id=726057116


The Dopefish can also be sighted in some Creative Wonders Games if the player choses to draw him:
Madeline Classroom Companion Series
http://steamproxy.com/sharedfiles/filedetails/?id=755672072


The Dopefish has now been sighted in some Edmark Games if the player chooses to draw him:
Thinkin Things Collection 2
http://steamproxy.com/sharedfiles/filedetails/?id=911159689

Thinkin Things Collection 3
http://steamproxy.com/sharedfiles/filedetails/?id=1092239870

Mighty Math Grades 3-6 Disc 1: Number Heroes
http://steamproxy.com/sharedfiles/filedetails/?id=911927167

Points:
Lolipop = 100 Points
Pepsi Soda = 200 Points
Pizza = 500 Points
Book = 1000 Points
Teddy Bear = 5000 Points


Items:
Raygun = Ammunition
Keycards = Used to Unlock Doors
Pogo Stick = Commander Keen uses his pogo stick to reach otherwise inaccessible places.


Collectables:
Joystick = Joystick (from Keen's brother's Nintendo video game) for manual flight control. Ship part required to finish the game.

Car Battery = (from Keen's mom's car) for electrical systems power. Ship part required to finish the game.

Vacuum Cleaner = reworked as an ion propulsion unit. Ship part required to finish the game.

Everclear = (from Keen's father's liquor cabinet) alcohol for fuel. Ship part required to finish the game.

Points:
Candy Bar = 100 points
Vorta-Cola = 200 points
Hamburger = 500 points
Chocolate Cake = 1000 points
Stuffed Toy Vorticon = 5000 points


Items:
Keycards = Used to unlock doors
Vorticon HyperPistol = Ammunition

Points:
Big-n-Beefy Burger = 100 points
Diet Vorta-Cola = 200 points
Zitto Candy Bar = 500 points
Double Chocolate Cake = 1000 points
Stuffed Toy VortiNinja = 5000 points


Items:
Keycards = used to unlock doors
Pistol
Pistol ammunition
Ankh = provides temporary invincibility

Points:
Shikadi Soda = 100 points
Three-Tooth Gum = 200 points
Shikkers Candy Bar = 500 points
Jawbreaker = 1000 points
Doughnut = 2000 points
Ice Cream Cone = 5000 points


Items:
Gems = The "keys" used to open doors. (NOTE: In Keen 4, there's a nasty glitch in which you save while you have a gem & load your game, your gem is gone and your stuck in a level.)

Neural Stunner = ammunition
Raindrop = collect 100 raindrops to get an extra life
Lifewater Flask = extra life


Collectibles:
Wetsuit = required to access the levels located on the islands
Council Members = All 8 need to be rescued to finish the game

Points:
Shikadi Gum = 100 points
Marshmallow = 200 points
Chocolate Milk = 500 points
Tart Stix = 1000 points
Sugar Stoopies Cereal = 2000 points
Bag O' Sugar = 5000 points


Items:
Gems = the "keys" used to open doors
Neural Stunner = ammunition
Keycard (Omegamatic) = to open security doors
Vitalin = collect 100 jars to get an extra life
Keg O' Vitalin = extra life

Points:
Bloog Soda = 100 points
Ice Cream Bar = 200 points
Pudding = 500 points
Root Beer Float = 1000 points
Banana Split = 2000 points
Pizza Slice = 5000 points


Items:
Gems = the "keys" used to open doors
Neural Stunner = ammunition
Viva = 100 for an extra life
Queen Viva = extra life


Collectibles:
Rope and Grappling Hook = needed to scale a cliff and gain access to the rest of the world map

Stupendous Sandwich of Chungella IV = the second biggest sandwich in the galaxy, required to pass the Grabbiter

Bloogstar Rocket Passcard = a passcard needed to fly the Bloogstar Rocket onto the Space Fortress

Points:
Peppermint = 100 points
Cookie = 200 points
Candy Cane = 500 points
Candy Bar = 1000 points
Lollipop = 2000 points
Cotton Candy = 5000 points


Items:
Keys = Used to unlock doors
Flower Power = Gives one Flower Power
Super Flower Power = Gives five Flower Power
Waving Keen = Gives one extra life
Magic Eyeball = Gives three extra lives and eight ammo


Collectibles:
Boobus Bomb = Used in the fight against Boobus Tuber

https://www.youtube.com/watch?v=nP-D7SGy9t0
Tagline: Horrible Tantalus Rays
Developed: Id Software
Published: 1990 Apogee Software
Genre: 1-Player Platformer

NOTE: Episode 1 of Commander Keen: Marooned on Mars, is Free Shareware. However, the other 2 Episodes: "The Earth Explodes & Keen Must Die!" have to be purchased as "Commander Keen: Invasion of the Vorticons" in order to play them.

https://www.youtube.com/watch?v=BaWMgbWut9w
Year: 1991
Developer: Id Software
Publisher: Apogee Software
Genre: 1 Player Platformer
Tagline: "Double Nuts!"

DOSBOX Config:
[CPU] cycles=10000

NOTE: Episode 4 of Commander Keen: Goodbye Galaxy, is Free Shareware. However, the other Remaining Episodes: "Armageddon Machine" have to be purchased as "Commander Keen: Galaxy" in order to play them while "Aliens ate my Babysitter" was released as a Standalone Game.

Trivia: The opening title sidescroll of Goodbye Galaxy & Aliens ate my Babysitter like like the opening sidescroll from the first Terminator Movie in the 1980s.