These Martians from Mars aren't as friendly or docile as yorps. When the Garg sees you, he will suddenly charge at you. At one time in Mars' history, the Gargs ruled over the yorps. His touch is deadly. One shot will do him in.
Found in: Keen 1
Gargoyle Other
Nasty-looking faces on the walls of Castle Tuberia. When they poke their tongues out, Keen can stand on them.
Found in: Keen Dreams
Gems Item
Gems are used to open doors found in various levels in Keens 4-6. To open a door, just carry the gem to an appropriate gem holder in the vicinity of the door. Keen knows all about the gems and will put them in the holder.
Found in: Keen 4, Keen 5, Keen 6
Gik Creature
This hard-shelled customer's worst points are its points! Its legs are spikes, so it will flip and try to poke you.
The planet in Keen 4 that Keen travels to to visit the Gnosticenes and the Oracle.
Found in: Keen 4
Goodbye Galaxy!: Secret of the Oracle Other
The fourth episode in the Commander Keen Saga, and first in the Goodbye Galaxy! series. Keen must rescue council members from various enemies to find out what the Shikadi and Gannalech are up to.
Found in: Keen 4
Goodbye Galaxy!: The Armageddon Machine Other
The fifth episode in the Commander Keen Saga, and second and last in the Goodbye Galaxy! series. Keen must stop the Shikadi from destroying the Galaxy by disabling the Omegamatic.
Used in Keen 6 to climb a cliff. The rope and hook are found in the First Dome of Darkness.
Found in: Keen 6
Gravitational Damping Hub Location
A level in Keen 5.
Found in: Keen 5
Green Cylinders Hazard
Not sure quite what these tubes of neon green stuff is. It's probably radioactive which is why Keen dies when he touches it.
Found in: Keen 6
Green Dangly Stuff Hazard
Some sort of dangly green stuff that looks like algae that hangs off platforms. You can walk on top of it, but make sure you don't hit the dangly part!
Found in: Keen 1
Green Goo Hazard
Bubbling green goo that may be acid. Don't fall in...
Found in: Keen 4
Green Slime Hazard
Slick, green, slime that will kill Keen.
Found in: Keen Dreams, Keen 6
Green Spikes Hazard
These spikes move up and down, ready to impale you should you acidentally fall on them.
Found in: Keen 1
Grunt Creature
The regular Vorticon that you will meet in the levels. Easy to defeat by one shot to kill. Unfortunately these Vorticons also like to jump which can pose a real hazard. Turning off the lights will solve that problem.
Found in: Keen 2, Keen 3
Guard Post One Location
A level in Keen 6.
Found in: Keen 6
Guard Post Three Location
A level in Keen 6.
Found in: Keen 6
Guard Post Two Location
A level in Keen 6.
Found in: Keen 6
Guard Robot Creature
This robot can cause you real trouble when it shoots 4 lasers rapidly one after the other! Unfortunately, you are unable to kill this robot.