The bearded, shirtless American guy (along with the other silly characters who perform charades in the game) is identified as a "hint-giving American" who says things like "I love Japan. I love Japanese people." in poor, broken Japanese. It's certainly a broad performance, and it would certainly be insulting to be compared to this guy. Sheffield said "I honestly think I'd have less of a problem with it if they were truly playing with American conventions and American Japanese fetishism - but they're just unconsciously making fun of a group of people. And I'm not sure anyone will tell Sega this isn't appropriate."
What a serious issue to have show up in Miburi & Teburi!