Level up better! Or Enemy Generator.
First figure out what part of the Kingdom your story is up to. Next make sure you have a boatload of mushrooms to bring up health. Then you go to the last part of the Beanbean Kingdom your story was at. Just kill everything in that area. Find the nearest pipe and go in it to a random spot. Then go back to where you were. Trust me it works. I am on level 53 because of this cheat.
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