hello, im playing at habbo.dk
i really need some help with my wired project
http://www.youtube.com/watch?v=VKvI9lUKYl8i bought the wired box with control arrows and a ball (as you can see above)
But how do i make the ball keep moving when im standing on an arrow?
what more do i need to buy and how do i do?

I hope someone can help me..