Tetsujin 28-gou (literally translated as "Iron Man No. 28"), is the titular super robotmecha from Tetsujin 28-gou, which is widely considered to be one of the first super robot character ever.
An extremely clunky yet near-indestructible robot, Tetsujin has a knight helmet-like head with iconic spiky nose, a bright yellow eyes which acts as an ultra-bright spotlight, and a massive jetpack at the back. As one of the earliest giant robot character, it lacks any weapon or special power, thus relies only on its extremely strong body and brute strength to defeat its adversaries. It is remote-controlled by Kaneda Shoutarou.
See also
Tetsujin FX - A modernized reimagination of Tetsujin 28