Futoshi Kijima works at a zoo, where his strength, patience, and familiarity with animals shape his grounded personality. His sturdy build and dependable nature make him one of the team's most physically powerful members.

As Goggle Yellow, his forehead jewel is the opal, symbolizing Mu, also known as Lemuria. Kijima specializes in heavy-impact techniques and earth-oriented attacks, often relying on power, momentum, and durability to break through enemy defenses.

His arsenal includes the Yellow Ball, Lightning Light Ball, Yellow Opal Megaton Ball, and Yellow Hammer. He also uses techniques such as Yellow Hole Digging and Yellow Mole Strike, allowing him to attack from unexpected angles and overwhelm Deathdark's monsters with brute force.