Here are some cheats and tips for the game Ridge Racer.
More Cars:
At the Galaga Now Loading screen, destroy every enemy ship and get a
perfect score. When you start the game, more cars will be available to
choose from.
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Race backward on normal tracks:
Start a race on any of the tracks and turn the car around right before
you get on the main track. As you speed toward the starting line, you
see a wall and a sign that tells you are going the wrong way. Drive
through the wall and now you can race backward against the computer-
controlled cars.
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Race backward on extra tracks:
Start a race on any of the extra tracks. From the starting line, turn
the car around when you reach 60 mph. A wall appears at the starting
line. Drive through the wall and race the track backward.
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Rotate the Flag:
At the title screen, simultaneously hold L1 and R1 and press Start.
The flag turns transparent. While holding the top buttons, you can use
the control pad to rotate the flag.