Jean-nine is the robot that based on Jean-bot and is Jean-bot's younger brother and was created by Beatstar. He was named Jean-killer by Beatstar, later renamed by Emerana as Jean-nine at the end of Beatstar's menace he joined Ultimate Force Zero .
After Beatstar captured Jean-bot and Emerana into giant sphere, Beatstar had created the ultimate robot by based on Jean-bot, Jean-killer. The rest of the team tried to help them before they were draged in, but it was too late as the gate close and it disappeared.