Mega Firefighters: This cheat involves editing a game file; create a backup copy of the file for a precatuion. Use notepad (or any text editor) to edit the "difffle" file in the "dreamcatcheremergency fire responselogic" directory. Notice the numbers and look at the difficulty settings. Alter the numbers to new values. Don't alter the numbers higher than 9.75; doing so may cause a crash.
