Basically it comes down to this:
-Kick out of the starting circle, getting 1 ring along the way--you're not interested in maximizing rings from that, just one will do
-Now head to the turtle guards and run into one, getting hit. You lose your ring (irrelevant), and the back ring now appears at start
-Go to the back and climb the pillar, jumping off once you can hit the midair 20 box
-From the 20, glide to one side to get a 10 box, then get another 20 that's on the ledge above start
-Drop down and head over to the back ring, making all rings reappear while you keep the 50 you have
-Now get the same 50 but in reverse order: first climb up, then go to the side, then finish off by the pillar (the second go-round will take about 10 seconds)