Part 1 discussed the components of NES background graphics – chr, nametable, palettes, and attributes. But this was only half of the story.
For starters, there are actually two nametables . They each have their own attributes for determining color, though they share the same chr. Cartridge hardware determines their position, either side-by-side or stacked on top. Shown here are examples of games using each orientation, Lode Runner (1984) and Bubble Bobble (1988).