its similar to line rider, you can make tracks and ride peoples tracks

http://rfshq.com/free-rider-2/Tracks/60811

this track is sweet if your cool and waste time playing it like me you'll see what i mean.
arrows move, Z turns you around
maybe this game is old news i just stumbled on it.

yeah this game is pretty much the shit. good tracks are hard to come by, but i have spent hours on the linked one

you can change to a skateboard, a truck, and a unicycle on the left with your mouse i guess

You forgot helicopter. You can drive a flipping helicopter!