Saburou Aoyama is an ice hockey player and aspiring inventor whose athletic coordination and mechanical curiosity make him a valuable member of Goggle-V. His background gives him quick reflexes, strong balance, and the ability to think creatively under pressure.

As Goggle Blue, his forehead jewel is the sapphire, symbolizing Egypt. Aoyama fights with speed and precision, using his skating-inspired movement and inventive mindset to create openings against Deathdark's synthetic beasts.

He is armed with the Blue Ring and the Blue Sapphire Jet Ring. His techniques include Ring Waist Break and Blue Jet Dash, allowing him to strike with rapid momentum and specialized ring-based attacks.