Denise

This chip creates the video image.

Playfields

Amiga Hardware Reference Manual Playfields

Sprites

There are eight sprites and they are 16 pixels wide and can be any hieght.
A sprite pixel can have one of three colors or be transparent.
The sprite can be anywhere on the screen.
A sprite can be reused as long as there is at least one line between it's old lower edge and new top edge.
Sprite have a priority with lover number sprite being put in the foreground.
Two sprites can be attatched to each other to create a sprite with 15 colors +transparent.