Well, I got my 2nd Omega Sentinel today. I was surprised. Great!! His mask is clear blue. And small robot's hands are red. But why this happened? My first Omega Sentinel's head is as the same as Omega Supreme's. I want to know the reason. http://tw.myblog.yahoo.com/jw!OZs6zFiYAg_kkagy1C9.xrqw6x8Hu4I- Maybe this solution is very simple---product line?