> Apparently schematics are wrong, then:
> void galaxian_state::frogger_draw_background(bitmap_rgb32 &bitmap, const rectangle
> /* color split point verified on real machine */
> /* hmmm, according to schematics it is at 128+8; which is right? */
> background_draw_colorsplit(bitmap, cliprect, rgb_t(0,0,0x47), 128+8, 128-8);
> Putting the split back at 128 make MAME match the PCB video.
Given the PCB output, it would make sense to change it back and assume the schematics are incorrect. I guess there's also a possibility that the Sega / Konami boards have different outputs tho.
As noted with the C64 port that was posted on YouTube, people appear to be using MAME as a reference for arcade perfect with this, and it appears we might not actually be arcade perfect ;-)