爆丸4 机械波涛After Shun tells his story about what happened in his battle with Wiseman, the other Bakugan pressures Raidizen when he is going to be able to combine. Radizen has become upset because he is unable to have a combination, he is approached by Roxtor but ignores him. He is later taken by Marucho who tries to cheer him up to a water plant his family owns. The two of them are confronted by Wiseman and they battle against his Bakugan, Radizen is able to hold his own and beat the two that when mira enters with roxtor who had follow marucho on to the plane , but when they combine he has a hard time. Radizen then fuses with Roxtor because he jump and collide with and combine then the two are easily able to defeat them in battle at the end the bakugan are clean up while mira and marucho talks about the whole ordeal and radizen and roxtor still are fighting
