Dreamed I was using an interdimensional elevator to travel somewhere. The interdimensional elevator had pretty straightforward rules; upon reaching the lowest floor (-5), there was a corridor at the first left, and a corridor going straight ahead and up. You take the corridor going straight ahead and up and chances will be you're fine, you take the one on the left and it's highly likely you will cause some event which will make everyone die.
My sister rushes ahead by herself and goes down the lift, myself and our father cursing at her impatience. After a tortuously slow journey down the lift with 8 other people, at which point I notice I'm the only barefoot one, we find my sister waiting at the other end. My sister and our father go on ahead down the correct corridor, as do most of the people. I poke my head around the left turn to see what the fuss is all about, it was just a hallway with a hand railing leading to a dead end.
Every time I looked away and looked back, it changed ever so slightly. This continued until it became apparent that a new hallway was leading off somewhere I couldn't see, at least not without going deeper down the corridor.
Curiosity didn't get the better of me and I made my way down the proper one, with one brief hiccup when three people did go down the wrong corridor on purpose. They stopped going any further when I told them they were likely to get us all killed, and I hoped they hadn't gone far enough to trigger an elevator event.
As it was, they did. It was when I was picking up some sweets from an interdimensional cornershop that the RYB gangs attacked. The exit was a door at the far end, with a railing in the middle where about 95 or so people were holding onto it. The moment you held onto the railing gravity flipped for you, so that the hallway entrance you came from was now the centre of gravity - meaning if you let go, you fell. This did not apply to anyone who didn't touch the railing, and was only something we figured out when we were on the rail.
The RYB gangs were three different gangs, one was entirely red, one was entirely yellow and one was entirely blue, like some digital glitch in reality. They started firing into the line of people, with every person killed changing colour to the gang member that "killed" them, joining their ranks. Thus the RYB gangs fought vigorously amongst one another and with the queue to grab as many recruits as possible, this was indeed a deadly elevator event.
The people in the queue on the railing were fighting amongst themselves too, and I gathered that they had been holding onto the railing for dear life for quite some time too - they were a lot more tired than I was. It didn't take much effort to knock one of them off or throw them in the path of the shooting RYB gangs, and it was only when I was in the new middle of the queue that I started to feel much more safe from the immediate attacks of the RYB queue. A lot of times I climbed on people so they had to support my weight and tire themselves out, if they hit me I hit the hand they were using to hold on. Most of the times I just moved over them, with the end soon in sight. The #1 champion at the top moved his hands out of the way to stirke the #2, at which point I seized the space on the pole he left open. The #1 who I recognised as fat albert protested at which point referees appeared, and concluded that not only was it legit, but I should be commended for having made it to the end having started at the other end. At this point gravity righted itself and I made my way to the exit, where I found my family wondering what took me so long.