Filan Snipr puts a ring in the middle with a mark racing around it. The center knob sets where you cut. Swipes have to go outward; inward ones do nothing. Hit the true mark and how far you were off decides the points. Hit the mirror twin across the circle—the one that keeps getting brighter—and the run ends right there. That twin is bait. The mark also changes speed, so a steady beat will not save you forever. Score sits a little outside the ring so the circle stays clear. Most of the pressure comes from one wrong cut, not from a long life grind. After a while you start second-guessing what you saw, and weirdly that hesitation is what makes people open it again.
Swipe out when the mark lines up—hit the mirror and the run ends.