It's a vehicle you can play with it.

"What do you like about skateboarding?"
"It's a vehicle you can play with. Even in a small space,
we can have fun like this. And also we can skate on the roadside too."
"What would you like to do in the future?"
"That's a serious question. For the now, I need to earn enough money to practice skateboarding, but some day, I want to have a sponsor and be a professional skater."

（9/21/2013 Komazawa Park）