All guns,ammo,and keys
To enter this code anytime during gameplay simply push the i, l, and m keys at the same time.
Contributed By: Tu Madre.
Start the game with the word -goobers in the command line. Press [Left Shift] + [Alt] + [Backspace] to enable debug mode. Then enter the cheat
Effect Code Add VBLs [Tab] + V Change Border Color [Tab] + B Display Coordinates [Tab] + F Display number of items, doors, etc [Tab] + C Extra Stuff [Tab] + W Free Items [Tab] + I God Mode [Tab] + G Lose Health [Tab] + H Memory Usage [Tab] + M Pause without messages [Tab] + P Quit [Tab] + Q Skip two levels [Tab] + E Slow Motion [Tab] + S View graphics and sound [Tab] + T
Contributed By: Evil Penguin.
Hold 'M' at the memory screen that appears while the game loads. Music menu options will appear after the game finishes loading.
Contributed By: Lagoona.
Hold the keys B, A, and T at once. It should give you a message about Commander Keen, but if you cannot hear any sound (most of the time because of a crappy sound card) then the sound will be reset and you will be able to hear sound again.
Contributed By: Dugtrio17.
Episode 1 secret floor
In first floor in room where floor 2 elevator is turn right and search the wall to find hidden room. Search walls until you find elevator to floor 10
Contributed By: Klace.
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