Commander Keen - Episode 1 - Marooned on Mars
C O M M A N D E R
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" T H E I N V A S I O N O F T H E V O R T I C O N S "
E P I S O D E O N E:
"M A R R O O N E D O N M A R S"
** Story **
Commander Keen is the alter ego of Billy Blaze, eight year-old kid genius, who
builds an interstellar ship when not working at home on his college fast-track
degree. Among other household objects, Billy uses his Nintendo joystick for
flight control and his mom's vacuum cleaner (heavily modified) for his ship's
ion propulsion system (with pile height adjustment).
At the hint of galactic trouble, Billy dons his brother's football helmet and
becomes "Commander Keen" Defender of Earth! Ever on the side of justice,
fairness, and high calorie junk food, Keen dispenses justice with an iron hand.
Keen's first adventure takes you to Mars, where the Vorticon invasion force is
planning their conquest of Earth. While Keen is exploring
Mars the Vorticons steal pieces of his ship and hide them within their cities.
Can Keen recover all the pieces and repel the Vorticon invasion? You'll
explore many dangerous cities, packed with diabolical traps and hideous
creatures, both of Martian and Vorticon origin. Use your pogo stick to reach
high ledges and jump deadly pits, and use your ray gun to stun the Vorticon
invaders. Can you find the secret city?
** Points **
Lolliop: Red ball-things with white sticks coming out the bottom. Worth 100
points to your total.
Can of Cola: White cans with red and blue streaks on it. Worth 200 points.
Pizza Slice: Yellow and red slice of pizze. Worth 500 points
Book: Brown book. Worth 1000 points
Teddy Bear: Teddy-like. Worth 5000 points.
Charge: Orange gun-shaped figures. Worth 5 charges to your gun-status.
Keys: Rounded boxes in varying colours. Enables you to open the corresponding
door to the colour.
** Walkthrough **
This walkthrough tells you how to clear the main levels, and get all the
necessary parts for the space ship. You must explore the other levels and
collect all the points, charges and stuff. If by some chance you run out of
charges when I ask you to shoot something, it's up to you to get more, or find
a different way around the obstacle. I'm not going to put a lot of filler in
this Walkthrough by putting in the levels that aren't needed to complete the
Also, the movements of Keen on the World Map or in the story are indicated with
'*-' before and after the sentence there is a '-*' placed.
*-Walk to the right, and enter the nearest building (level). It looks sort of
like a circus.-*
Get all the nearby points. Walk right and jump up the blocks to get the gun
charge. Jump over the red blocks, and jump on the pink ledge. Jump up the pink
blocks and jump over the green tentacle pit. If you're feeling lucky, go
underneath the pink blocks leading to the exit, and try to get the book. Jump
to the exit.
*-Walk the top of the screen, to the left of the cactus. Enter the cone-shaped
Jump to the top of the grey block pyramid and get the pogo stick, which is a
very useful item. Exit the level through the door. This is the easiest and
shortest level in the game.
*-Go to the large, grey building below that level, and enter it-*
Wait for a while until the three yorps to fall into the green-tentacle-pit, and
then walk to the right. Jump up to the top of the yellow blocks, and jump to
the top of the pink ledges. Jump across the screen to the very top left of the
level. Pick up the yellow key, and use the blocks running across the top of the
screen to get across to the other side. Get down off the blocks/ledges (NOT
NEAR THE DOG) Jump down to the bottom of the green ledges, and fall to the
bottom of the level. Jump up the red blocks and walk over to the far right.
Jump down and get the charge. Go back to the bottom of the level again, and go
to the right, near the yellow door. Enter the door and shoot the enemy inside.
Get the red key and return to the top of the level, where the dog is. Shoot the
dog (Vorticon) 4-5 times and he should die. Open the red door, get the battery
and exit the level.
*-Go to the light-blue, circus-tent-like level on the East side. Enter-*
Jump up the blue stairs, and enter the inner-part of the level. Fall to the
bottom and run to the right until you come across the yellow key. Pick up the
key. Return to the top of the level and use the yellow door. Fall down the
steps and shoot the garg. Get the charge on your way down. Get the red key,
while on your way to the right, and go up the red stairs. Shoot the Vorticon,
get the Vacuum cleaner and exit the level.
*-Walk as far north as possible and enter the Cactus level-*
Fall down the starting ledge and go to the right. Jump over the fire and jump
up the yellow blocks. Shoot the garg inside the pipe, and continue to the
right. Jump up the stairs and onto the pink log. Evade the little grey men, and
go to the left and go up the stairs. Go left and jump over the purple enemies.
Go to the very left of the level, and jump up the green ledges. Jump onto the
dark green block, and onto the green ledge. Run across and kill the 2-eyed
Martians (Gargs as they're commonly known). Follow the two red ledges, and jump
down to the final red ledge. Exit the level.
*-Get in the blue teleporter. Go to and enter the Ice Level, to the right of
Jump onto the light-blue ledge. Run to the far left of the level (Past the blue
and white barrier). Start jumping up, and continue until you reach the blue and
white ledges, past the ice machine. Work your way to the top of that section,
and you will meet two of the guard robots. Go to the right side. When one of
the machines is near you, not facing you, with enough room for you to jump onto
the ledge, jump on the ledge. The robot should turn to try and shoot you. When
it is just about to, jump over him (may take a few attempts) and quickly make
your way to the next ledge. Don't forget to collect the blue key when jumping
to the very top of the level. Run to the right and slide along both ice-paths.
Kill the Vorticon by shooting him, or by luring him towards you and making him
jump onto at least the second row of blue ledges (in pyramid shape). Then, exit
*-Walk to the very south of Mars, and enter the brown-goldish level to the left
of the other-*
Walk right, and go up the steps (Before you come to it, on the third pole,
there are a few white dots, leading upwards. Jump up there to get some valuable
points). Anywho, go up the stairs. Jump to the top of the blue and white ledges
on the left, and get the blue key, using the same method as before in the last
level. Jump off the last ledge and then walk to the right and jump into the
darkness below. Make sure to avoid the little grey men. Jump on the Ledge above
the patch of fire, and jump up the invisible blocks on the VERY right. Jump
onto the ledge at the top. Continue up, and right, and jump over the grey man
patrolling on the ice. Jump up on the blue ledges, and jump through the blue
and white barrier. Jump onto the ledge to the right of that (with barrier on
top). Use the pogo stick to jump on the invisible blocks along the barrier.
Jump around until you end up on a large stone above the Vorticon. Shoot the
chain, and the block will fall on the Vorticon, killing him. Alternatively,
just shoot the Vorticon four times with charges. Jump on the barrier on the top
right, get the medicine, and exit the level.
*-Keen rushes back to his spacecraft and replaces all the necessary parts. Keen
flies back to Earth, desperately trying to get home before his parents do.
Before returning to his house, Keen notices the large, Vorticon Mothership
looming in the space above Earth. He returns back to his house, nonetheless. He
reaches his bedroom just before his parents, and his parents walk in to
discover a yorp in his bedroom. Keen asks to keep it, and his parents say
goodnight to him. Keen rushes out of the house, determined to blow up the
Vorticon Mothership, before it blows up Earth!-*
*-Congratulations, you have cleared Commander Keen: Episode 1 - Marooned on
Episode II - 'The Earth Explodes' Prologue
"Keen has assembled his ship and returned home, only to find the Vorticon
Mothership hovering over the Earth, ready to destroy all of Earth's cities and
wonders! Keen must sneak aboard, stop the imminent destruction of Earth, and
find a way to neutralise the Mothership! If he fails... THE EARTH EXPLODES! (No