this is a fun game but if u get stuck on something here you go this is what i found out playing ...
chapter 2-3
In chapter 2-3 when you break the vase and are asked for one million rubees you have to find a way to make them fast.
There is a generator room that gives you small amounts of rupies for jumping, and there is a room with a passcode. The passcode is 5963. After going into the room talk to the guy who pays you (he is in the far right of the room) and sign up to be a gerbil.
After doing this you will be sent into a huge ball where you run to make volts. You are paid if you stop and tell him that you are tired. But, instead of running yourself, just get a heavy object (not too heavy) and have Mario (or Peach) go to the right of the circle. Put this heavy object on the left or right button and go do something for about 15 mins. I found taping it down works pretty well.
Come back later and stop, you have just gained many rubees without wasting valuable time. Have fun!