@CM30 did you upload those sprites to the cutting room floor? If so, you messed up the text for the spark enemy.
These...
...always had a face.
The unusual part is not that they have a face but that that their eyes are moving left to right, which likely would've been used when they move horizontally. In the game they always have the same animation where their eyes move up and down, no matter where they go.
I just realized that some of the sprites I wanted to repost were left out cuz I went over the 10 images per post limit.
Here they are again:
The ones that have unused eye sprites are the lamp sparks:
And THIS is the sprite where Vampire Wario shields himself, not the other one. The other one is likely for when he hits light or garlic and turns back to normal.
Also, you mentioned that the unused Wario sprite was similar to " frames used when he messes up in the golf game", but that was the wrong one.
THIS was the frame that's similar to the miss frame, but I think it's more appropriate to say that it's similar to the sprite used when Wario starts rolling, since it was found among the rolling sprites, not the golfing mishap sprites. I mean it's more likely that sprite in the miss animation was made for rolling first and golf second.