How the hell can it continuesly go up a hill, thats impossible, it hasnt got a motor so a human would have to power it then its the same as a skateboard. a skateboard can go up hill if you push it, a ripstick after taking a look on youtube just kinda wobbles uphill, seriusly lol i dont see much point, you wanna get one of these
http://www.rollersnakes.co.uk/catalog/D ... -47816.htm
Even thats a cheap one!