We all know the cat is the true xenomorph god but I'm still in awe at how for so many years I never notice the cat wasn't in there. I mean no shit in hindsight, considering how she just drops the box and flips it through the door and all but yet.
In the extended scene the alien is seen bitch slapping the box, meaning Jonesy got out and gave the alien an arse kicking. Which is why it appears slow and stagnate near the end of the movie. Still what was he doing while outside of the box. Is the cat David?