TV-Series
Description
Tonzura operates as a core member and primary strongman of the Doronbo Gang, handling physical labor. His short, muscular frame features a pronounced overbite and facial stubble, consistently dressed in a purple uniform prone to comedic tears that expose his colorful underwear during clashes. He exclusively speaks in a Kansai dialect.

Throughout the original series and its narratives, Tonzura follows Dokurobei's orders alongside Doronjo and Boyacky, hunting Skull Stone fragments to reveal a vast gold deposit. Despite his strength, he habitually flees direct threats. After the gang disbands at the series' end, he adopts civilian life as a wrestling manager.

In the "Time Bokan: Royal Revival" OVA, Tonzura reunites with Doronjo and Boyacky for a competitive race, narrowly defeating rival villain groups before Dokurobei punishes them. The trio later engages in a crossover battle against heroes from other Tatsunoko series, facing defeat by the Yatterman duo.

The 2008 reboot shows Tonzura rejoining the Doronbo Gang to pursue the Skull Stone fragments anew, leading to another separation after repeated failures against the Yatterman duo.

The 2009 live-action film portrays Tonzura with distinct traits: aspiring to be a professional wrestler, he seeks the Skull Stone to achieve this ambition, visualized in an animated fantasy sequence. This version exhibits eccentric behaviors like pelvic thrusts during idle moments and a weak stomach causing vomiting when startled. He demonstrates heightened physical prowess, including lifting cars, and specializes in explosive devices like carrot missiles and flower rockets. His loyalty fixates intensely on Boyacky, whom he aggressively defends when distressed. Though attempting to rescue his comrades from Dokurobei late in the film, his actions inadvertently trap the gang in an interdimensional portal before their eventual escape and farewell.

Tonzura's legacy surfaces indirectly in the spin-off "Yatterman Night" through Elephantus, a successor adopting his alias while joining a rebellion against the oppressive Yatter Kingdom—a regime indirectly stemming from Dokurobei's influence.

Trivia notes include name spelling variations ("Tonzura" in most media versus "Tonzra" in the 2009 film) and character-inspired merchandise like collectible figures and insect model kits themed after his costume.