Since childhood, he was drawn to engineering and mechanics. He loved to tinker and build. He grew up without parents, on an island that was a scrap metal junkyard—a brutal, unforgiving place. When Gizmo was 13, he managed to build a powerful bomb, with which he blew up half the island. He was able to construct a small boat and sail away. That was the start of his adventure. He perfected his skills, and eventually became a threat to the World Government. He would devastate islands, building weapons out of any garbage he could find. They called him a psycho, though it's fair to say he really was one. He could crack jokes while covered in someone else's blood, smiling the whole time. He almost never acts serious; for him, everything and everyone is just one big joke.

