Jack Punt is a human brawler affiliated with Team Anubias during the events of Bakugan: Mechtanium Surge. Likely the youngest team member based on his stature, he sports blond hair, a light green vest, a white long-sleeved shirt with blue prints, and dark gray pants. As an Aquos-attribute brawler, Jack initially partners with Aquos Krakenoid. Following Krakenoid's demise, he forms a new partnership with Aquos Ziperator. He remains the sole Team Anubias member to exclusively use a single attribute throughout his appearances. Jack displays an obnoxious and excitable personality, frequently laughing insanely during battles or tense situations, a trait that annoys even his teammates. His pupils contract significantly during these moments of laughter or excitement, resembling characters like Stoica or Shadow Prove. Jack debuts alongside Team Anubias during an Interspace confrontation, challenging the Battle Brawlers. His early battles primarily pit him against Marucho Marukura and Trister. Their initial clash ends inconclusively due to the sudden interference of the Mechtogan Zenthon. Subsequent battles against Marucho result in Jack's defeats, including one where he utilized BakuNano technology. He also participates in team events like a Capture the Flag challenge, attacking the Battle Brawlers with Team Anubias only to fail due to Marucho's strategic countermeasures. A significant turning point occurs when Jack discovers Team Anubias's alliance with the antagonist Mag Mel. This revelation shocks and devastates him, leading to a reevaluation of his allegiance. Shifting from an antagonistic role, he supports the protagonists. He collaborates with teammates Robin and Ben, using their Ziperators to assist Noah against Chaos Bakugan. Later, he joins Team Anubias in defending Dan Kuso and Drago. In the concluding episodes, he battles the Razen Titans and the Chaos Army alongside the Battle Brawlers and other allied teams, contributing to their victories. After the conflicts, he congratulates Dan with the others. Jack's battle record shows varied outcomes. Engagements against Marucho typically end in losses or inconclusive results, especially when interrupted by factors like Zenthon. However, he achieves victories in large-scale collaborative battles against the Chaos Bakugan and Mechtogan armies. Notable trivia includes his resemblance to Marche Ovis from Beywheelz, his status as the only Team Anubias member with a confirmed last name, and the planned Japanese name "Lev" for the unaired Japanese version of Mechtanium Surge.