SX Superstar

Hint: Get a new girlfriend:
To get a new girlfriend, win three races in championship mode.
NSX_Guy.

Hint: Bigger air:
To get bigger air, hold L1 as you go up the ramp. Release L1 (ideally when the gauge is full) at the lip of the ramp.
NSX_Guy.

Hint: Realistic back flip:
Since the back flip trick goes very fast and looks unrealistic, there is another and much better looking way to do one. Use the "Bigger air" trick. After you launch off the ramp, hold Back and you will do a better looking and more realistic back flip. You can also do a front flip like this, but it requires some skill, and big air.
NSX_Guy.

Hint: 360:
Press Down/Right after getting a lot of air.
Ramonarg37.