Ruin Explorer
Legend
I did wonder about that!Maybe this one incubated in the cat?
It's very catlike, like the way it dashed after the people at the party, that's exactly the way a domestic cat dashes after fleeing prey, and my brain read it as "a cat" for a half-second. And it's sleek like a cat and way faster and more agile than any Xenomorph I've seen before.
The only counter-evidence would be it doesn't have digitigrade rear legs, and the cow and dog-based Xenomorphs in Alien3 both had digitigrade rear legs. But that's weak evidence, because Xenomorphs vary from movie-to-movie, and we don't know if Alien3 is "canon" here (esp. as it happens in the future, with potentially a different "base strain" of Xenomorph, we have no clue where these eggs came from, maybe not LV426).