Starting from approximately the center of the floating platform, run and jump to the left, and perform a lateral mid-air morph to hit the spike from below (landing on the Namihe) and enter X-mode. Hold an angle button to turn around to the right while retaining dash speed. Arm pump a tile or two to the right, so that the Namihe is no longer below Samus. Gain a shinecharge and continue holding down while exiting X-mode to obtain temporary blue, and use it to break the bomb blocks below while falling through them.