Non-Nintendo urban legend?
It was a popular rumor that mentioning anything to Pikachu in this game, such as Sony's PlayStation and Sega (both being the competitors to Nintendo at the time) would be equal to calling him an "electric rat". This is false because from what people say and have discovered, the microphone device and Hey You, Pikachu! do not recognize any of the previous things and probably just guesses what you said. --Breakin'Benny (talk) 21:29, January 26, 2016 (UTC)
I had my Pikachu open all of the 10 treasure chests in Cobalt Island, but it turns out that there's no special prize for this effort. And it's not quite what I predicted. Kimberly AJ (talk) 19:18, February 20, 2016 (UTC)