Later on , a corrupt Rocket Knight by the name of Axel Gear fought and wounded Mifune as he tried to steal an ancient book , which contained the secrets of the rocket knights .
Sparkster was trained to become a Rocket Knight at an early age .
Later on , a corrupt Rocket Knight by the name of Axel Gear fought and wounded Mifune as Rocket Knight tried to steal an ancient book , which contained the secrets of the rocket knights .
Sparkster was trained to become a Rocket Knight at an early age .