How do you defeat king ping in the legendary starfy

First is the easy part. You must star spin the enflammed spot on his belly (the bulge with a bandage). Keep hitting that until the ice your standing on breaks (because he breaks it). This is the difficult, you must mak an icicle fall on his head so that his helmet will pop off for a second and you can hit that weak spot. The helmet goes back on but if you just stand under the same icicle, he won't get the chance to move and you get to hit himagain, and again, and again. After he is defeated, he will commit suicide. :)