Anslation Darts

Race from 301 or 501 down to exactly zero. Each visit is up to three darts. The thin outer ring doubles a number, the thin middle ring triples it, the outer bull scores 25 and the inner bull 50.

A visit that would go below zero busts: the whole visit is void and the score goes back to where it started. With Double out, the last dart must land in a double, so leaving 1 also busts. Your hand sways a little while aiming; Reduce motion in your device settings keeps it still.