Yes there are, big time. If you encounter a hacker safe disconnect. (DON'T turn off the DS!!!) I have also discovered a strategy to beat them. Red Light, Green Light. A hacker that has a, for instance, 100mil cheat can only make that amount for every combo they make, or that's what I heard. I beat a hacker this way when he was going from, 100mil, to 0 about every 5 seconds. Luckily, when the clock stopped, he had 0. But that is not always the case.
...If it was a smart hacker, they would get 100 mil on the green, and stop moving on the spot.
Here's the easiest way to beat a hacker. Play Skatris. I always pick this mode if I meet a new skater. If he flies, I'll beat him, then leave before he picks a score mode. As of now, no hackers can claim extra trick counts. And surely, people who hack sucks at the game. So beating a hacker in Skatris is a no brainer. It's a way to toy with them before you leave those poor *******s.