So I was watching, with a friend, this blindfolded speed run of Punch Out Wii:
https://www.youtube.com/watch?v=mUpT7fHi1lA
At the Bear Hugger fight, I was suddenly like "Wait, did Bear Hugger just say 'f-cker?'"
It's at 13:25 in the video. I listened to it twice and both times it sounded like the f-word.