Bio-Particle Cannon
Zairin and an army of Bio-Zoids are dispatched to take back Torafu. They attack and successfully enter the city, and Volcano faces off against Mugen Liger. Zairin finds he cannot control his body and Volcano starts moving on its own. It activates its Bio-Particle Cannon to destroy Ruuji, but Seijuurou deflects the blast at the last moment. Zairin and the Bio-Zoids beat a hasty retreat.
Aired 15/01/2006EP 40 - Bio-Particle Cannon
Zoids Genesis
Natural disasters have devastated planet Zi, killing off almost all life. A thousand years later humans have gradually re-established civilization, salvaging ancient Zoids through diving and mining efforts. In a village whose most previous item is a giant sword which they worship as a holy symbol. A teenage boy discovers an ancient Liger-type Zoid while on a deep water salvage operation. Suddenly the village is attacked by skeletal Bio-Zoids intent on stealing a powerful generator located in the village. Our teenage hero awakens the Liger and discovers that the towns sacred sword is the Ligers weapon, together they fight off the mysterious Bio-Zoids. At least for now...
(Source: AniDB)