Cow Poke is the add-a-ball version of Buckaroo. One difference in the gameplay is the red bullseye on the roto-target which gives an immediate added ball. There is no such target on Buckaroo. The gameplay on Cow Poke is exactly the same as the earlier Flipper Cowboy. They only differ in graphics, cabinet style, and animation unit.
Disclaimer: Although I have done my best to ensure that all information contained on this page is correct, I cannot take responsibility for any typos or misleading information.