E2 Jet is a Hikarian defined by a singular obsession: speed. He lives by the principle that "speed is life," driving him to impulsively challenge any entity he perceives as faster. This compulsion often led to high-speed contests, even during active duty. Such actions repeatedly resulted in disciplinary measures from Professor 300X, including temporary suspension and corrective strikes of artificial lightning. Narrative progression eventually tempered this impulsive tendency.

In combat, E2 Jet operates as a high-speed aerial unit. His transformed state enables supersonic flight. His primary duties encompass rapid-response rescue operations and providing air support to fellow Hikarians, mirroring combat aircraft tactics. He wields the jet gun as his designated weapon and employs the jet gun attack as his signature technique. His turbine also incorporates laser weaponry, delivering powerful punches during engagements.

A character named E2 Jet also features in the sequel series "Ultra Radiant Express Hikarian" ("Denkō Chō Tokkyū Hikarian"). This represents a distinct individual, separate from the original character's storyline.