First you need to get the cheat menu and get super speed, invincibility, and stunts. Then go to the main menu and click on practice, then go to Alcatraz and then pick the 4x4 truck. When you start go straight all the way to the brown turn; turn around and head back the other way until around the place where you started DONT STOP just keep going and you should see something that looks like a really big jump go right at it and youll go flying in the air. You should go right through the mountain. when you do that youll land your trick and get a lot of points.