(My apologies for the lateness of this post. My time hasn't been my own again just lately, plus to be fair, the final (and hopefully correct!) V2 rifle didn't arrive in my collection until today anyway!

)
All Zuckuss figures look alike!

That's what I used to think, and whilst they are all pretty similar at first glance (and a second one too!), there are differences to be found. As usual, the Lili Ledy versions are perhaps the most different, but even there those differences aren't massive. The mid section is painted grey rather than silver, the eyes and nose are darker and glossier shades of blue and red, and the rifle is a dull greyish black instead of the shinier solid black seen on the Kenner versions. That said, the Unitoy II L1a?, R1b?* (4th from the left below) stands out as having the darkest body out of my lineup.
* N.B. the brilliant Variant Villain website has not yet finished its Zuckuss page, and so there are a few COO's missing from its photo library. For that reason, I have had to mark most of my COO's with question marks until I have pictures of all of the available COO variants, as I cannot yet be 100% sure of the definite identities of mine. Also, the VV site has not yet got a page on Zuckuss's rifle, and hence I have used The Imperial Gunnery's 'V1, V2 and V3' designations instead.
From left to right:
'Metallic' body, limbs & head. Silver belt. No knee/heel circles. Body & limbs different shades. Wide stance. Smile I, L1a?, R1a? Figure, V1 Rifle
'Metallic' body & limbs, matte grey head. Silver belt. No knee/heel circles. Body & limbs different shades. Very narrow stance. Smile I, L1a?, R1b? Figure, V1 Rifle
'Metallic' body & limbs, matte grey head. Silver belt. No knee/heel circles. Body & limbs different shades. Narrow stance. Smile I, L2a?, R1b? Figure, V1 Rifle
'Metallic' body, limbs & head. Silver belt. Knee/heel circles. Body & limbs same shade. Darker body. Narrow stance. Unitoy II L1a?, R1b? Figure, V2 Rifle
'Metallic' body & limbs, matte grey head. Silver belt. Knee/heel circles. Body & limbs same shade. Very narrow stance. Unitoy II, L2b, R1a? Figure, V2 Rifle
Lili Ledy. 'Metallic' body & limbs, matte grey head. Grey belt. Darker red nose, darker blue eyes. Knee/heel circles. Body & limbs same shade. Narrow stance. Lili Ledy II, L2b, R1a? Figure, Lili Ledy V3 Rfle