Desc: Dejimon Teimâzu: Bôkensha tachi no tatakai: Directed by Tetsuo Imazawa. With Brian Beacock, Steve Blum, Melissa Fahn, Dave Wittenberg. The appearance of Mephistomon causes Bio-Merging of Digimon to happen all around the world and it's up to the Tamers to stop him.