For those of you that want coins fast, go to (5-1) or the land of Cragnons for this enricher you will have to have dottie, when you fall to the stone podium go all the way to the right 'till you hit a wall go into 3-D and use dottie to go through it, then go through the first pipe, collect coins and go out the next one to be on the elevated hill then the whacka will appear jump on him and a whacka fruit will come out.

After that turn to 3-D and get the treasure chest it has a "important item" item and go out of that area now go the left of the level until you see a stone hut that has a mushroom sign go in and these whacka fruit sell for 150 coins you can keep hitting the Whacka eight times until he says, "I'm outta here!".

That opportunity never comes up again but the coins you get are well over the maximum 999 Mario can carry. Two "bone breaking" installments should let you exploit this hapless run-down to the max.