I don't know if it was due to whatever method they used to dump it, or maybe the cart was like that originally, but all the header information on this is blanked out. While that's insignificant to most, if you're trying to play this on real hardware with some flash carts or copiers, it will not boot and may throw the system into SMS mode. Putting "SEGA MEGA DRIVE" in the header makes it work fine.
I doubt the original cart was like that. All of the Glorysun games I've bothered to look at never even had the name changed in the header, much less anything else. I did notice that they used a patched version of the Body Count ROM. It was a PAL only game with a region lockout if you tried to play it on NTSC hardware, but that isn't present in Biohazard 3. It's probably giving them too much credit to say they patched it themselves.
Has anyone played this to any extent? I had never even played the original version so I can't draw any conclusions. Is there anything at all new other than the Glorysun splash screen and Biohazard 3 title screen?