During gameplay press Ctrl Shift Alt W and type 2061 then Enter. Then press A and Enter again to enable cheat mode. Now enter any of the following "Codes":
|columbus||10000 give yourself a yellow flag|
First make a backup copy of the file game.dat which is located in the game directory. Then open up the original with any text editor. Now locate the line
Volume: 750 0 5??
And change it to
Volume: 750 0 581
5 Tons of Stuff
After pressing Ctrl Alt Shift W press the sequence once again. Now enter a number below and press A after it to get 5 tons of that number. Put in more A's for more.