Does anyone know what the native resolution is for all versions of Worms? I understand that they all support multiple resolutions, but what was the base resolution for creating the sprites, the backgrounds, and the hud elements?

For the 2nd generation games W2, WA and WWP look here:
http://www.yoda.arachsys.com/worms/wa/anims/

He wants to know the native resolution of the sprites, not get the sprites themselves. I am not sure what he means by "the native resolution", however.

If he has the sprites that the game uses then he also has the native resolutions of said sprites... it would be silly (unless your upscaling) to store sprites in size A) then display them as size B) in-game -.-

I assume 640x480, since that's what the menus are in.

if the sprites are 640x480 then 1 would fill the entire screen unless scaled down... I understand that they all support multiple resolutions, but what was the base resolution for creating the sprites, the backgrounds, and the hud elements?
Do you mean, "displaying"?