this goes to show you what they will come up with. this came out back when i was in middle school, i think, a long time ago. the idea is alot like skateboarding and in-line street skateing, but without the skateboard or skates. you try to run up walls and slide down rails just in sneakers. they actually came out with special shoes for it. they were just like regular sneakers but they had a large groove cut out of the bottoms for sliding down rails. my friend actually went out and got a pair, the brand name, i think, was "Soap", a weird one i know. he must have been very board. anyway, it sure wasnt for me. i decided just to stick with skateboarding and hockey. and, also, the occasional game of hackey sack.