To me IG-88 looks very sad while wearing a funny hat in the cover art of the villain pack. Just felt like people should be made aware of this.

I'm not seeing it... The little nub on his head?

2 black dots are his eyes the line is his mouth :|

I see the red dots as his eyes, the line below that as his mouth, and a giant robot cigar hanging out the left side of his mouth.

The figure looks a little bit like Bender; "Kill all humans".

"Hey there, sexy mama! You wanna kill all humans?"