Level skip:
Hold [Ctrl] and type fodder at the map screen. A white border
will appear to confirm correct code entry. Press [Enter] to
display the "Phase Complete" message and jump to the next
mission.

Cheat mode:
Click on the save game icon at the "Boot Hill" screen. Type
JABULA and press [Enter] at the filename prompt. The phrase
"Cheat Mode Active" will appear to confirm correct code entry.
Enter one of the following codes during game play to activate
the corresponding cheat function.

Effect     Code
Phase completed     [F10]
Level select     [Shift] + [Enter]