A List: Atari Space Riders, Atari Airborne Avenger, Allied Leisure Getaway (Disputed A list: (Capcom) Airborne, (Stern) Avengers, (Stern) Avatar, (Williams) Algar)
B List: Bally BMX, Bally Hardbody, Bally Grand Slam (Disputed B list: (Stern) Batman: Dark Knight, (Gottlieb) Baseball. Very borderline, cause of much consternation: (Midway) Black Rose -- some people try to get it on the B list by calling it Bally Black Rose, but it's under the midway imprint, so it's disputed at best)
C List: Capcom Pinball Magic, Capcom Airborne
and the lists go all the way to Z
Z list: Zaccaria Clown, Zaccaria Devil Riders