Cheat Mode:
Follow the steps below to access cheat mode. Note: This involves editing a game file; make a
backup copy of this file before proceeding. 

     Step 1 - Use a text editor to edit the "ca.ini" file. 
     Step 2 - Search for the word "cheats" to find the lines "infiniteammo=0" and
     "invulnerability=0". 
     Step 3 - Replace the "0"' with "1" in both lines to enable those cheat functions.