Yeah, but those are UK PAL and Japanese NTSC carts. Mine are US NTSC, if that makes any difference.#Virtua Racing (PAL/UK) - Black screen
#Sonic & Knuckles (PAL/UK) - Black screen
#Sonic & Knuckles (NTSC/JAP) - Black screen
To tell the truth, I never really expected Virtua Racing to work. It probably does its rendering either in the cart or the z80 chip and sends the data to the image processor. I'm surprised at Sonic and Knuckles, however. I thought it intercepted the character sprite data and replaced it with its won.