Rename your prifile and enjoy the corresponding result!
Get more money: Uncle Bill
Win in championship: Vera Champ
Get all tracks: Beef Cake
Get all stunts: Mad Dog
How to hover biker? Just get a stunt score over 500,000. Thus, you will get all the stunts. Next, get over $50,000 and set the following garage settings:
Brake Gyro: 0
Gear Ratio: -0.95
Suspensions: 0.95