Trivia
Even though there is a Commander Keen 6: Aliens Ate My Baby Sitter!, Commander Keen 5: The Armageddon Machine was created after that one, because of the lead time required to launch at retail.
Featured in the game are small green bottles of liquid that when you pick up they say 'v'... This refers to the "V" Energy Drink produced in New Zealand. Currently their website is at http://www.v.co.nz.
There are several jokes in the game that relate back to Douglas Adams' Hitchhiker's Guide to the Galaxy. According to the book, a nice hot cup of tea is said to be a Brownian Motion inducer. One level is called the "Brownian Motion Inducer". When you get to the machine at the end of the level, you can see a cup of tea being stirred inside!
Easter Eggs:
1. In the level "Energy Flow Systems", go as far down as you can on the right, where you have to put the yellow gem. Find it and put it in or type TAB simultaneously. And open the door and go as far right as you can and jump up with holding the right arrow. You will go to a secret and below you there will be one of the Game engineers' name!
2. To see the director's first name:
a) Go to the level "Brownian Motion Inducer".
b) Go to the end where you have to put the blue and the yellow gem.
c) Look down and you will see the director's first name!
And to see his surname
a) At the place where you have 3 choices to jump up to the 3 doors, go to the first door.
b) Go in the door.
c) Go where you put the blue and yellow gem (you don't need the gems).
d) Look down.
Another Keen trilogy, called "The Universe is Toast", was planned. However because of the success id had with their FPS games, id stopped making Keen games.
Another easter egg (but far more controversial) which can be found only on some versions is the representation of a swastika with pipes. This can be found on level 4 (go down the 1st pole, then left, then right after the short drop and finally look down (press down)) and was inmediatly deleted of all subsequent versions (altough some say it resurfaced when GT re-released the series).
There is an alternate ending for this game. If you can get to the Secret Korath III Base, you'll find a fuse which can be broken by pogo-ing on it. Thus when the shikadi try to escape in the end, a different page appears that tells you their ship didn't start and they were arrested by the Korath III police for double parking.
The Armageddon Machine is the second of two episodes of the series Commander Keen: Goodbye Galaxy!. The other episode is "Secret of the Oracle".
Unlike Commander Keens 1 through 3, Commander Keen 5 supported CGA graphics.
