Looking at a couple of their endings, Little Fat Yang is credited for artistic design in Mickey Mania 7 while L. Fat Wang is credited for the same in Toy Story. I they're the same person. Between those games, there's Sammy Lee and Mindy Lee credited for program design, (I'm guessing one of those names are made up) there's David Chen and L.S. Chen for the same thing, the music designer seems to be different in both games (U.O. Lee in MM7, U.L. Wang in TS) and while Lee Dan Fai was a programmer in MM7, he was the director of TS.
BTW, can anyone translate the credits in Bao Qing Tian? I suspect that's by EHY as well.