Suspect: The Run! (iPhone iPod)
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More Coins
Before each race buy the Coin Magnet and the X2 Coin Bonus so you will be able to collect more coins.
Oil Stain
If you use the nitro whenever you run onto an oil stain you will not lose if you hit another car.
Police Barricades
Whenever you encounter Police barricades you can always use the nitro to destroy them.