Antihero name: Rampage
Past: Project X-it's a idea of fusion demon,kaju and transformers DNA. Jason became the first and only person who was used for this project. Sirzechs ignore his oldest son suffer and after that Jason start hate all devils.
Like: kill devils and angels,his friends,his girlfriend,swim.
Hate:devils and angels,somebody call him "crab face".
Abilities: Jason can push the blades out of his hands,ultimate durability.
Love interest: Marry Bloodborn
Aka
Kamen Rider Kivala
Lines:"I am the chaos, I am the death. I AM RAMPAGE!"
"Devils,angels I don't care. You all my prey..."
"Let's the hunt begin".