A spinner section at the front makes you run on rotating platforms. Then climb the rising and falling pillars to the cube sweepers, which try to push you off the island, left and right.
Then I made a rolling-log pit from geometry brushes, where you have to jump on the rotating cylinders to pass. If you fall into the pit, there is a ramp to exit and try again.
And finally, a field of floating platforms shifting around that you have to jump across to the final one that lifts you up to the ‘prize castle.’