If they really have a Visco license, than they probably just got the original roms and manual/insert directly from Visco.
Good that they don't use, the NEO GEO logos. NEO GEO is still an active IP of SNKP for those download games...
The only bad thing is then the cart sacc. with this project. I know that I'm guilty with this too, but I wouldn't do it again...
Even if they have their own PCB, you still need to kill original carts for the AES release!
Getting reproduction from China start to be interesting in the several thousands range.
I wonder what kind of protection they do, epoxy?
My dev system can dump cartridges directly through the connector
, not that I ever would do that...I'm just an observer here.