The phrase "trick system" refers to a method or a set of steps that someone uses to deceive or fool others, often for personal gain or to get an advantage. Full definition
The classic Trials HD and Trials Evolution gets a next gen sequel, but does the sci - fi theme and new trick system make it a better game? (metro.co.uk)
The backgrounds look great and the new trick system makes the animations look even more impressive. (newgamenetwork.com)
But you're right, the biggest danger isn't tricking the system into thinking there's a car where none exists. (gigaom.com)