Paper Mario: The Thousand-Year Door Cheats

The ghosts curse
On the Excess Express when the ghost comes up in the room nextdoor and tells you to get his diary and don't read it. Go to the baggage cart find the ragged diary and read it by going on to gear and important things. Press A and it will come up read it or don't read it. Read it. The ghost will come up and curse you. Mario will then turn into a ghost himself and will get an automatic game over. Make sure you save before this!