Zi

Zi is a planet. It may be near Antares III.

Fiction

Ask Vector Prime

Planet Zi was destroyed by Unicron, leaving Crank and Cut-Up as the last survivors. Echoes and Fragments

Notes

Planet Zi is the setting of the Zoids anime. The association of the Starriors characters with it is likely a reference to Starriors being a spinoff of Zoids in toy terms, though the two Tomy lines were unconnected in story or setting.