B-Killer takes up an appearance like a giant robot and knight hybrid. He has large white spiky hair and large demonic-like yellow horns. He has a knight helmet, sharp armor plating in his torso, an "X" shaped vest below his torso with a green diamond in the center. He appears to wear a blue cape and wears more armor on his arms. He is also a sort of cyborg/robot and self-destructs when Van defeats him. He also owns snake based bey like Rochi.
- Devil Serpenter 125FS: B-Killer's Beyblade.