When I was a kid I had a dream where my hometown had to turned into a desolate wasteland cuz of some Startgate-esque portal allowed a bunch of dinosaurs through, me and siblings were running from our mother because she was infected and turned into a a t-rex, we were in a trailer park hiding in one of the trailers when the roof was ripped off to see a t-rex( our mother) roar at us and eat my brother, then my sister and I ran out and she got infected by a velociraptor and turned into Barney, eventually I was able to lure all the dinosuars into the stargate including my mother, after curing my sister, by getting Spider-Man powers or some shit and swinging into the stargate.
I shit you not, that's a legit dream I had when I was 6 or 7, still have fucking nightmares about that shit