In which I'm like those twins from Thundercats

I was walking down a city street, maybe in New York? There were a lot of people on the sidewalk, and whenever it was time to cross a street, you had to step onto a little metal platform, like those things they put across potholes here in Atlanta. It would float several people across the street at a time when the light changed, because for some reason you couldn't just walk across the street. I was standing in a big bunch of people, waiting to get on a platform thing, and the guy standing next to me told me that if I fell off, I would be electrocuted, like if you fall into the subway tunnel. He said the best thing to do was to be in the middle.

I got on the platform and tried to get in the middle, but got pushed toward the edge. At first I was scared but then all the other people disappeared and it was just me on the platform. It didn't just move across the street anymore - it turned into a little surfboard/hovercraft/flying carpet thing that I could fly all around the city. I could fly up the sides of buildings and all over the place and it was amazing. I flew over Central Park (it was definitely NYC at this point) and tried to do a loop in the air, but I fell off the air surfer and plummeted towards the ground.