Cowboy Bebop at His Computer: The US television commercials, Nintendo Power's first walkthrough article and the magazine adds for the game referred to the sword that struck Bowser's castle as "Smithy the Sword." This is not the sword's name, Smithy being a completely different character. In addition, the Nintendo Power walkthrough article and the magazine ads hinted at a subplot involving Geno becoming a "real boy".
Values Dissonance: A mild example of it caused Bowser's victory pose to be changed. In Japan, his pose was a Bicep-Polishing Gesture. That gesture isn't used in America, and it looks very similar to slap-the-crook-of-your-elbow, which means roughly the same thing as the middle finger. Bower's victory pose was thus changed into a double fist clench in non-Japan versions.