Have 100 lives
I've recently discovered a cheat to get 100 lives.
You have to go to the Hazy maze cave as Luigi (easier) and go to the toxic maze. Break the red ! Box to become invisible (and become immune to the toxic maxe). Find a place with two moles one beside each others.
Look around and find a brick box on a corner. Break it. You will get a Red Mushroom, take it and you will become very big.
Go back to the two moles and keep walking on them, and you should earn around 20-25 lives this way.
Added by: Pingouin7bis Aug 18th 2008, ID#8857