It’s all fixed in the PPU, I think. So with a coprocessor you can render your own frames and put them in memory where the next line’s tiles are going to be pul

It’s all fixed in the PPU, I think. So with a coprocessor you can render your own frames and put them in memory where the next line’s tiles are going to be pulled from. That is what the SuperFX did, I think. But in the end you’re still stuck with the limitations of the PPU actually drawing it in pixels and number of colors and such.