Unfortunately, that was a console war Sega ultimately lost, prompting it to move its focus to games rather than hardware. It's completely normal to see Sonic games on Nintendo platforms these days ...
The Sega Genesis (or Mega Drive ... The chips were recreated using images of de-capped original hardware, and although it doesn’t cover every chip from every version of the Genesis yet, it ...
Although the Dreamcast did not repeat the Saturn’s mistakes, it seems one commercial failure was enough to ruin Sega’s chances as a hardware developer.