I had a dream where I went to a stadium/airport (where there were about 40 blue Toyota trucks parked outside) to find out what cars were racing in the NASCAR race going on there so I could tell my friends (I think our car was racing). I couldn't see the track to check, though, because there was a carnival in the way. I decided to go through and on the way play a game. I went into a haunted house-like thing and went through a secret passageway. That was a mistake and I had to figure out how to get out of a shitload of rooms, most of which I don't remember.
I do remember dropping into one and seeing some kids run out through an exit that closed after them. Another was a wrecked hallway with precursor orbs (from Jak and Daxter) and Spargus rats (from the same series) hunting for me in them. I went out of that hallway via an elevator shaft before the rats noticed me, and landed in an abandoned parking garage. Then some evil force shadow being started following me and I spotted a Mario doll in a dumpster with a USB and a key. I grabbed the USB but couldn't get the key because the being was too close behind me. Every now and then another hovering being would appear and follow me (I remember an inquisitor and a customs agent being two of them). Eventually I decided to forget the key and do battle with the original being. I ran at him and started beating the shit out of him (although I don't think it did anything) then I woke up.
Come to think of it, that's how a lot of my dreams end. Try to run from thing -> can't -> begin battle with thing -> wake up. Wonder what it means.