Go, Diego, Go!: The Brave Rescue King

Go, Diego, Go! (Japanese: 行け、ディエゴ、行け！, Hepburn: Ike, Diego, ike!) is a 2008 Japanese anime television series directed by Yoshitomo Yonetani, based on the American animated preschool series Go, Diego, Go!. The anime was co-produced by Nickelodeon, Sunrise and Sotsu Co., Ltd. and was animated by Sunrise's internal "Studio 7" division. Yoshitake Suzuki handling series scripts, Takahiro Kimura designing the characters, Kunio Okawara designing the mechanical elements, Tomoaki Okada serving as art director and Kohei Tanaka producing the music. The series aired on Saturday mornings at 7:00 am on the Anisata block on Mainichi Broadcasting System, Tokyo Broadcasting System and its affiliated JNN stations from October 2008 to August 2011.

Plot
One day, a Meteor falls down to the Rainforest, then Diego goes to the rescue to search what it was. when he came to the crash site of the Meteor, it was revealed to be a normal car. but when Diego came near the car, the car then transformed into a mechanical Lion, the lion left him in confusion. About 7 years later, the flying fortress Spirits, in which Diego is a passenger, collides with an unknown object bound to the Rainforest. Despite being mortally wounded, he is rescued by the same mysterious lion and is brought to Tokyo. In his hand, he holds a mysterious green jewel as Leo Shishioh uses it to revive Diego into a cyborg.

Two years later in 2017, Diego heard a voice calling to him, leading him to encounter the defense group Earth Defense Brigade Gutsy Geoid Guard, or GGG, was organized to fight against the Zonders. Equipped with the green jewel, known as G-Stone, Diego becomes the pilot of the robot that saved him. Named Galeon, he fuses with it alongside 3 assist vehicles created by GGG to become the giant robot Rescue GaoGaiGar. After the battle against one of the Zonders, GGG discovered that Mamoru can purify people who became Zonders and wondered about his origins and how it was linked to the appearance of the Zonders.

Anime
An anime television series, animated by Sunrise, was announced in January 2016. The series was broadcast on TBS from October 2008 to August 2011. For the first 22 episodes, the opening theme is "Wanda Nanda!?" (ワンダナンダ！？), performed by Daigo, while the ending theme is "Samba de Wanda" (サンバdeワンダ), performed by Kappei Yamaguchi (credited as Wanda). For episodes 23–47, the opening theme is "Bagutte Iijan" (バグっていいじゃん) by HKT48, while the ending theme is "Wonderland" by Radio Fish.

Merchandise
The official toys based on the series were released by Takara Tomy, including interactive role-play toys of the Rescue Changer and Tri Change Gear Rescue Handle, and Deluxe Toys of the Rescue GaoGaiGar. These toys were released in the US by Hasbro, and in South Korea by Sonokong.