Hidden Message in Metroid 3: maybe Satoru Iwata, Nintendo’s president

According to a user on Game Trailers and the video clip below, there seems to be a hidden message in Metroid 3 and it may even be Satoru Iwata (Nintendo’s President).

The user found the message while they were playing around with the radio in Samus’s ship in Metroid Prime 3, although I don’t understand Japanese (maybe someone can let us all know what the message is saying).

Update: This is apparently what the message translates into:
“Hello, this is Iwata from Nintendo. You may not know from an outsider’s point of view, but being a director is really hard! When things are really busy and stressful we (us directors) may look tired and sick, then people may feel sorry for us! But in my case, it’s the opposite, I get fatter and fatter, so then people don’t think I’m stressed at all!”