Launch the game with these command-line parameters 
 to activate cheat modes:
 
 -mumford - Hodspodkins Mode
 -whostayedlate - Rockhard Mode
 -whostayedlateagain - EasterEgg Mode
 
 Example:
 "C:Expendgo.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