Max Out Lives, Hearts, Coins, Etc:
Press the START button to pause the game. Press the SELECT button 16 times.
If you did it correctly, there will be a blinking box around the last digit
of your lives. Now, press and hold A+B, and keep them held for the entire trick.
Next, press Left and then press Up. Your number of men should increase.
Do this for every number until every number is a nine.