Cheat Mode
Note: This procedure involves editing a game file; create a backup copy of the file before proceeding. Use a text editor to edit your saved game file (usually named *.tai) in the game directory. Edit the values in this to alter the values in your saved game. Play the game and save it to see which values change as to which row is what.
General strategies
Keep Li Yuen happy by giving him whatever money he wants until you can fight him off.
Save the game every few minutes.