User blog comment:AnimalKirby/Guran-Miraosu Discussion/@comment-4774462-20120120181135/@comment-3062343-20120120215842

It's a new skill, the Japanese name is 金剛体. I still don't quite know what it does, since translating the Japanese wiki's description doesn't make a lot of sense. For anyone curious, the Japanese wiki's description is: 受身性能が向上し味方の攻撃などに触れても尻餅をつかなくなる. 加えて耳栓の効果. The second part seems to say that it gives the effect of Earplugs, so maybe it's a compound skill of something and Earplugs. I could be completely wrong though...