Super Paper Mario

Flea Jump Room Code in Merlees Mansion-

In Merlees mansion, when you get to the part where you have to pay off the debt
for the broken vase, (and you owe 100,000,000 rubees!) go to the third floor up,
and there is a door that is locked with a passcode box next to it. Punch in this
code to unlock it: 5963

Now you can get into that room and get a lot of rubees even though you can't make
enough to pay off your debt! (You will ned at least 10,000 rubees to find the
100,000,000 rubees, which are found on the forth floor by flipping to 3-d at
the left hand side of the third floor. But you will need an even longer passcode
to get through that door at the end.)

the code is 41262816