Volt-ure is Mo-Lec-U-Lar's bird partner.
Volt-ure's origins are a mystery, but presumably, he was created by Hardware on Mon*Star's orders to counter the SilverHawk's bird partners.
Volt-ure is a robot or robot-like bird. In his bird form, he can fly in a planet's atmosphere or in the space of Limbo. As long as Volt-ure is close to Mo-Lec-U-Lar when he activates his transformation, Volt-ure will change into a matching form. This enables the two to pull off more complex cons than Mo-Lec-U-Lar can do on his own, as Volt-ure acts as an accomplice. When Mo-Lec-U-Lar turns into a rocket to travel across space, Volt-ure will also assume a rocket form to keep pace.
It is unclear how intelligent Volt-ure is. It is unlikely that he has full human intellect, and so may be more of a puppet when mimicking a sentient being, responding to Mo-Lec-U-Lar's thoughts as to speech and action.