Easy way to get up to 100000 points without cheating. Find a rail or rails with a quarter pipe nearby.
Get your special bar to to full. Then grind the rail with a special grind if you have two jump to the second or maunual to it and special grind that.
Land in a manual and go to quarter pipe if you have the speed do a special move off it.Providing you land it all you should get some bulk points. I got 141000 on Tokyo in one combo!!!.
Another good place is the downhill bit with rails near the start point on Canada.
More tricks, tips and cheats for this game are right here - Tony Hawk's Pro Skater 3 cheats
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