Sorry, the above is for the console versions of the game

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For the DS, use 'Homer ball' to 'ball-burst' up the ramp and into the Statue of Liberty, to crack it. After repeating this a few times, the Statue will drop the burger, and you will just need to ball-burst into it to complete the level!
Let me know if you get past it, or if you're having any problems

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Phenom