Is it me or is the American Genesis outputting NTSC-J? It would seem so because when I adjust my TV's black level via a test pattern generator, the black level is fine throughout that, and my DVD player and even my Roku. But on the Genesis I have to turn up the brightness a little (including on my PS2 too for that matter), as if the black level is that of NTSC-J.
Also, just found out my 70's TV supports PAL.. Nice!
(This game is proof because it does NOT work in NTSC mode on a Genesis, no matter how you try to force it).