Expendable

Launch the game with these command-line parameters 
to activate cheat modes:

-mumford            - Hodspodkins Mode
-whostayedlate      - Rockhard Mode
-whostayedlateagain - EasterEgg Mode

Example:
"C:\Expend\go.exe" -whostayedlate 

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Various Cheats
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Type in the following codes then press "-" 
on the numeric keypad to activate
 
bod             - Enable cheat mode
bing            - Disable cheat mode
dunky           - Highscore entry and back to main menu
bucketofchicken - View from behind
babapapa        - More credits
bungle          - ???
crystaltips     - 1 additional life
albertofrog     - Super granades
mrbenn          - Skip level
zippy           - Infinite health
triz            - Triangle info