Note: This procedure involves editing a game file; create a backup copy of the file before proceeding. Use a text editor to edit the "user.ini" file in the "groove games\marine heavy gunner\system" directory. Locate the lines with "F1=" and "F2=" and change them to:

F1=god
F2=allammo

Press [F1] during game play for God mode, and [F2] for unlimited ammunition.