Walking horizontally

Some people find it hard to walk vertically, how about people who walk horizontally. You must be wondering how do people do it? here people don't take the stairs or escalators to go to the next floor in the mall, they just walk up the walls, or the just walk down the walls.

When i say walk means they literally walk and not climb.

Take a look and see this is a whole new shopping experience for anyone.

Do you think people are crazy, it would be faster to take the stairs.

but these 4 ppl did it and it looked sooooooooo cool i am sure they had lots of fun.

It was like floating in the air with a wall next to you.