In Metroid Prime 3: Corruption, Admiral Dane expresses his frustration with the Space Pirates by letting out a rather mild profanity. "Damn," to be precise. In the Metroid Prime Trilogy, which released a week ago, it's been scrubbed.
See for yourself in the above comparison, uploaded yesterday by YouTube user ThunderChaosStudios. The cleanup didn't affect the rating process at all. All three games in the trilogy were originally rated teen, and so is the trilogy. One wonders why someone went to the trouble of eliminating the only(?) swear word in the game, one you hear on television daily.
I've contacted a Nintendo public relations rep for comment. If we hear back, we'll update the post here.
Metroid Prime: Corruptions Admiral Dane Drops the Curse Word [GoNintendo via Joystiq]