As mentioned in other posts, the trick is using multi-color sprites to look like multiple single-color sprites.
I did the scan line frequency calculations, and my though of changing the border color would not work. In one cycle the scanline advances 8 pixels, so toggling the border color would be a minimum of 32 pixels in width.
I did the scan line frequency calculations, and my though of changing the border color would not work. In one cycle the scanline advances 8 pixels, so toggling the border color would be a minimum of 32 pixels in width.