For more complex or larger moving objects, you can overlap sprites.
Overlapping simply means that the sprites have the same or relatively
close screen positions. A relatively close screen position can result in
an object that is wider than 16 pixels.

The built-in  sprite video priority  ensures that one sprite appears to be
behind the other when sprites are overlapped. The priority circuitry gives
the lowest-numbered sprite the highest priority and the highest numbered
sprite the lowest priority. Therefore, when designing displays with
overlapped sprites, make sure the "foreground" sprite has a lower number
than the "background" sprite. In Figure 4-11, for example, the cage should
be generated by a lower-numbered sprite  dma channel  than the monkey.

     figure 4-11: overlapping sprites (not attached) 

You can create a wider sprite display by placing two sprites next to each
other. For instance, Figure 4-12 shows the spaceship sprite and how it can
be made twice as large by using two sprites placed next to each other.


    (128,65)               (128,65)       (144,65)
       |_ _ _ __ _ _ _        |_ _ _ _ _ _ __|__ _ _ _ _ _ _
       |     /  \     |       |           /  |  \           |
          __/____\__                     /       \
       | |          | |       |         /    |    \         |
         |          |              ____/___________\____
       | |__________| |       |   |          |          |   |
            \    /                |                     |
       |_ _ _\__/_ _ _|       |   |          |          |   |
                                  |                     |
                              |   |__________|__________|   |
                                       \           /
                              |         \    |    /         |
                                         \       /
                              |_ _ _ _ _ _\__|__/_ _ _ _ _ _|

                                  Sprite 0       Sprite 1


         Figure 4-12: Placing Sprites Next to Each Other