In PC Genjin 1, he becomes Chinese Genjin, or, something like that, so, no changes there. However, something that's interesting, when you get hit from directly below, where you jump up after taking damage, you can see Bonk's doodle inbetween his legs in both versions........either that, or he has a tail! Also, when he's going up a waterfall, it looks like you can see his bunghole or something, it's really wierd. And none of this was cut out of the US version. Don't believe me? Try it out for your self! In the 3rd game, they made him become Chinese Bonk again, which they call Star Bonk, since they have him shoot stars. Wierd.
I'm hoping someday Tomaitheous/Bonknuts will have a working Game Boy emulator for the TG so we can port over the 2 regular Bonk GB games, & give them a facelift, not to mention a soundlift!