There are many circulating platforms similar to Polar. There are two goals in this stage, and there is a giant ring that flips over the stage. The Fall Out zone for this level is not much lower than the orbiting platforms.
Go across the orbiting platforms, and eventually make it to one of the longer, narrower platforms nearing the goals. You can also dash across the orbiting platforms since it is very hard to balance on them. Once you are at the ring, slide across on one of the mid-points of the ring, and very carefully roll onto the other side where the goal is. Then, roll your way carefully and stick to the edge away from the ring as the ring can easily knock you off the floor; then roll into the goal.
Repeat the same strategy as strategy 1. But instead of sliding on the ring, get catapulted by the ring on one of the sides that is facing a goal. Look at the map very carefully to judge your landing, and fall off to get launched very closely before the ring arrives. Then, roll into the goal.