To my knowledge most Waixing GBC games are undumped, but based on this earlier post by "AttackedbyGlitch"
http://bootleg.games/BGC_Forum/index.php?topic=1576.msg16102#msg16102at least "Legend" is dumped.
Edit: Turns out there are a few more dumped Waixing games out in China, but the websites hosting them usually appear to have fees associated with actually getting the ROM. Therefore I do not consider these games to have publicly available dumps. Some of these ROM hosting websites do have some pretty useful information about these games though, including some screenshots. Also, some of these are just re releases of other companies games, and some are just ports of Waixing's FC games.
Disclaimer: Don't download ROMs of games you don't own, and don't download stuff without considering it could be a virus. I did not check these files, download at your own risk
For an example "幻灵游侠" can be found here
http://43.226.149.217/GB0.html