I remember a few scenes of this movie. I think there May have been rollerblades or some form of skates / skateboards being used, but the scenes I recall had these things in it: there was a group of kids (some were teenagers) , a white glowing ball which helps them out sometimes, the kids seem to be on the run from a group of people who are trying to get them. I can't remember the name of the movie, but I remember it must have come out in the 1980s, and had a group of kids / teens running most of the time. There may have been some vehicles involved also. Thanks for any ideas or possible answers, I'd prefer youtube links and / or IMDB link if you know the name of the movie.