I recently came across a couple of interesting unofficial HK Mega Drive releases while I was surfing on ebay and after asking to the seller to send me some in-game pics, I saw that not only the sprites and backgrounds looked like they were designed from scratch (and not borrowed from other games), but they also looked great!
The seller simply listed both games as beat'em up from HK so I had really no idea about their actual name since I can't read Chinese ideograms! When I said to myself that I was going to look at some online dictionary for a translation, I quickly got discouraged after I found out that there are thousands of ideograms to pick from (quiet a shock compared to our alphabet!) so I just had to ask a person from China to attempt to read the writings for me.
Considering I couldn't find any info on these games online, I'll give an arbitrary translation (from a Chinese source though at least!). Anyways for the people out there who are able to read Chinese, feel free to contact me if the translations are off!!
Shui Hu Feng Yun Zhuan (Beneath the Clouds) - Mega Drive
Yang Jia Jiang (Legend of the Commander of the Yang Family) - Mega Drive