Mini Madness

Load up challenge mode -- corridor-- stairs to hell. Drive the course until you reach the portion with two paintings sloping downwards. At the bottom of the second painting are power ups, load and switch them until you get the light blue UFO looking powerup. It is "Jump". Reset with to gain speed down the paintings and use the jump power up with speed to gain the requisite distance. When you collide with the helicopter, it will crash to the ground and the achievement will pop!