About Chinese KungFu: Challenge of the Dragon

Sachen's version is possibly a pirate.

youtube is full of authentic sources—many authentic sources.

When YouTube is seemingly the only source for any information, it becomes that.

Bottom line here is this is a criminal accusation. You UVL to make a criminal accusation and have no proof than someone on youtube says so?

And by the way, he says its a Double Dragon rip-off and its clearly not a Double Dragon pirate . At least find the game that it is supposedly the legit version.

I believe he meant clone (like all those Wolf3D/Doom and Diablo clones you used to hear about). That's what most cases of rip-offs mean (at least the ones I've heard about).

Edit: Meaning, he's referring to the game as a whole, regardless of who published it. I myself was merely pointing out that Sachen's release may be a pirate.

which game was pirated?

Sachen's release was the presumed pirate, dunno if the other publisher had the original or if there's third.