Commander Keen Episode I: Marooned on Mars Cheats
Code Effect Durning game play press T, A, and B Free ammo Durning normal game play press C, T, and Spacebar Gain all items Durning game play press G, O, and D Invincibility While on the world map hold Shift and Tab to walk through to the next level Level skip
Contributed By: Fragnarok.
Walk Past Uncompleted Levels
On the world map, to walk though uncompleted levels, hold tab with the num lock on and walk though the level. You will be able to walk though it like you would a completed level.
Commander Keen Episode II: The Earth Explodes Cheats
Code Effect SHIFT-TAB End level C-T-SPACE Free items G-O-D God mode
Walk through Uncompleted Levels
To walk through uncompleted levels, hold tab with the num lock on and walk through the level. You will be able to walk through the level as you would, if it were completed.
Contributed By: anarcho_selmiak.
Commander Keen Episode III: Keen Must Die Cheats
Code Effect SHIFT-TAB end level C-T-SPACEBAR free items G-O-D god mode
Secret Level/Complete Standard Galactic Alphabet Translation
To access the Secret Island, you must wait at the shore just south of the Grand Intellect's Castle. Messie, the monster you may occasionally see swimming on the map will swim up to it. This may take several minutes. Walk onto Messie to hitch a ride and it will eventually take you to the Secret Island. The level here contains both hordes of Stuffed Toy VortiNinjas and the first of two complete translations to the Standard Galactic Alphabet in the entire Keen series.
Contributed By: Pleinair.
Walk Though Uncompleted Levels
To walk though uncompleted levels, hold tab with the num lock on and walk though the level. You will be able to walk though the level as you would if it were completed.
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