Up until very recently, we’ve only seen the third member of the Mazinger team in silhouette.
But thanks to new scenes, we can see the unit premiering in Mazinger Z/Infinity — called, appropriately enough, “Infinity” — both head on and from top to bottom.
This new unit looks both monstrous and ancient — not terribly off-note, seeing as multiple versions of the Mazinger story have made reference to both lost ancient technology and classical myths.