Short answers, pulled from the story.
The Chinpokomon episode of South Park follows the children of South Park becoming obsessed with a fictional Japanese anime franchise called Chinpokomon, a parody of Pokémon. The fad is secretly a Japanese government plot to brainwash American kids into child soldiers for an attack on Pearl Harbor. The episode satirizes consumer fads, parental helplessness, and American pop culture paranoia.
The Chinpokomon episode originally aired on Comedy Central on the 3rd of November, 1999. It was the eleventh episode aired in the third season and the 42nd episode of the series overall.
Trey Parker wrote the episode and co-directed it alongside animation director Eric Stough. Parker is a co-creator of South Park.
Yes. The Chinpokomon episode was nominated for an Emmy Award in 2000.
Chinpo or chinpoko is a vulgar Japanese slang word for penis. The name of the fictional Chinpokomon franchise embeds this obscene pun, which would be apparent to Japanese-speaking viewers but largely invisible to English-speaking audiences.
DVD Verdict described it as perhaps the most devastating parody of the seemingly endless pop culture craziness of forced Japan fads. The A.V. Club identified it as South Park's first fad episode, in which characters become obsessed with a trend and then abruptly drop it. Adam Crane of PixelatedPop ranked it 23rd on a top-25 greatest episodes list in 2012.