This was a very clever idea by the writers of this episode. I didn't really care about the main story about how the Simpsons did everything already but the side story with the Sea People was pretty funny. This is when South Park was in it's prime in my opinion and I really like these kind of episodes where the kids play the biggest parts in the story and the citizens of South Park kind of stay out of the plot for the most part. I love the clever schemes that Cartman comes up with which leads to more funny adventures.
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