A film series in the long-running Ultra Series, consisting of two movies, Ultraman Zearth, and Ultraman Zearth 2: Superhuman War: Light and Shadow.
The movies were released in 1996 and 1997, respectively.
Both movies serve as a parody/spoof of the Ultra Series, in general. It also features product placement from the Idemitsu petrolum company, in which the character of Ultraman Zearth is created to advertise for.