Recruited into Axis Amerika in order to infiltrate and eliminate the recently revealed Young All-Stars, he would represent the Japanese Empire in this alliance of evil. Despite jetting through the air like Earth-Two's Hop Harrigan or Earth-One's Adam Strange, Kamikaze turned out to be a dud each time when matched with the West's finest!
How, though, can we say with certainty that this hero originated on Earth-Eight? It was revealed during the Infinite Crisis by Alex Luthor of Earth-Three that the potential Earth-Eight was where all remaining characters originated that had not previously appeared on former Earths known as Earth-One, Two, Four, S or X. Their adventures on that merged post-Crisis Earth would have mirrored those on Earth-Eight.