To get over 1,000,000 points, jump into the hot-dog stand in the middle of the level. It may take a few attempts, but you can jump into the window and drop for a good ten to fifteen seconds doing tricks. You will also land every time. To get over 1,000,000 points, manual through the go-kart tunnel in the direction of the go-karts. Go slightly slower and manual on the right side on the red and white stripes. Do this where the tunnel starts to slope up. If you manual on the red and white lines, or in between those and the wall, you should eventually fall through the floor. You can drop for about ten seconds, doing however many tricks and always landing them.