An Advanced Nintendo Entertainment System
Article excerpt
decrazyo on GitHub outlines the process for modding the Nintendo Entertainment System (NES) to use 2 PPUs for advanced graphical features.
I don’t expect anyone to actually bother building this so the docs might be kind of half-assed at times. Check out my modified fork of Mesen2 if you’d like to play with this concept without modding your NES. See the related projects section for some demos that take advantage of the dual-PPU setup.
Features
More colors
More sprites
Parallax scrolling
See the video below and more on GitHub.