Hey! This is the remix of the old one.(Sorry that you cannot see the old one at the tree 上矢印=speed high 下矢印=speed down 操作(CONTROL) 1Use 'up' button to speed up. 2Aware of speed limit. 3Highest speed:800km/h. 4When distance come down to 42000(m),please start to speed down. 5Speed down by pressing 'down' key. OK, and that's the way to control it. Please remix it so there is a better project.