Energer Z is Mazinger's older brother ,i think. He is kind of a prototype model. I am so pleased with this Soul Of Chogokin release. He is my new favorite. He is super sturdy and heavy. He is super posable and the rocket fists are classic. The most awesome thing about Energer Z here is the amazing colors on this guy. The pictures shown above can not really do it justice. You have to see this guy out of the box to believe it. The red is like a classic Hot Rod car color and the dark blue and yellow accents really make him look cool. Don't forget he has a long silver ramp attached to his back so a guy on a motorcycle can drive up it and land inside his HEAD! Once again, HOW do the Japanese think of this stuff? Energer Z doesn't have a boat load of accessories (just 2 rocket fists, 2 open hands, and 2 motorcyces to fit in his head)but overall I love this guy. He is super fun, durable, posable, and a real eye catcher.