This is a challenge known by Fortnite's veteran players. Going through colorful circles in freefall is something that has existed since the very first season. One of Bullseye missions is to redo this challenge but this time above Fatal Fields.
The route is very simple, and the only real difficulty will be to find a match in which the Battle Bus flies over Fatal Fields. The first circle is located at very high altitude and you will not always be able to reach it, even helped by your glider.