"High-strung" is the best way to describe the Insectron spy Tonbot (トンボット Tonbotto). The fastest of the Insectrons, he is easily excited, bouncing off the walls even during the most serene, relaxing moments and peppering his sentences with English. Among his repertoire of tools are the Bot Shot homing missiles stored in his tail and the ability to emit a liquid or gas "Jet Shower" from his mouth, which can form a mist that envelopes pursuing enemies.

He and Autojetter seem to have a rivalry.