In the anime-only sequel series Dragon Ball GT, Goku is transformed back into a child by an accidental wish made by his old enemy Pilaf using the Black Star Dragon Balls while Pilaf was about to wish to take over the world. Goku, Trunks and his own granddaughter Pan travel the universe to search for the Black Star Dragon Balls and return them to Earth to prevent its destruction. After acquiring the Super Saiyan 4 transformation, Goku battles the evil Tuffle Baby, Super Android 17, and the evil Shadow Dragons. His final challenge is against Omega Shenron, whom he destroys using the Super Ultra Spirit Bomb. Goku leaves with the original form of Shenron, but not before saying his goodbyes to his friends on Earth. He appears 100 years later at the next World Martial Arts Tournament as an adult, where he watches a battle between Goku Jr., his descendant, and Vegeta Jr., Vegeta's descendant. An elderly Pan sees him, but he quickly departs.
In the latest anime-only sequel series Dragon Ball Daima, Goku is again transformed back into a child, along with the rest of his friends and family, by a wish to the Earth's Dragon Balls made by King Gomah of the Demon Realm. Goku later travels to the Demon Realm with the Supreme Kai and the Majin known as Glorio, later joined by Princess Panzy of the Third Demon World as well as Piccolo, Vegeta, and Bulma. During the final battle against Gomah, Goku unlocks an alternate version of the Super Saiyan 4 transformation, while Glorio uses the Demon Realm Dragon Balls to restore Goku and his allies back to their normal sizes.
Goku has appeared in various other media including an unofficial Taiwanese live-action film and an unofficial Korean live-action film. He was portrayed by Justin Chatwin in the 2009 20th Century Fox feature Dragonball Evolution. Goku has appeared in almost every Dragon Ball licensed video game, including crossover games such as Jump Super Stars, Jump Ultimate Stars and Battle Stadium D.O.N. In 1992, Goku was featured in the interactive game Dragon Ball Z: Get Together! Goku World, in which Goku and his gang travel back in time to review events in the Dragon Ball timeline and interacts with his younger self. In December 2007, Goku made a guest appearance in avatar form in the MMORPG Second Life for a Jump Festa promotion titled Jumpland@Second Life. Goku appears in the Dr. Slump and Arale-chan video game for the Nintendo DS.
Goku has been the subject of, and is mentioned in, various songs. "Son Goku Song" and "Gokū no Gokigen Jānī" feature Goku as a child singing about himself. During his adult years, the song "Aitsu wa Son Gokū" by Hironobu Kageyama, where Kageyama praises everything about Goku, and the duet "Ore-tachi no Energy" feature words spoken by the character. For the release of the single of the Dragonball Evolution international theme song "Rule", Toriyama supplied CD artwork of singer Ayumi Hamasaki dressed as Goku.
Goku has been used in Japanese public service announcements aimed at children. In June 1988, Goku and other Dragon Ball characters were featured in two PSA short films. The first, in which Goku is taught the importance of obeying traffic safety by others, is entitled Goku's Traffic Safety. The second is called Goku's Fire Fighting Regiment, in which he teaches two children the importance of fire safety.
Goku has made guest appearances in various Japanese television shows and manga. In 2005, Goku appeared in the Toriyama parody manga Neko Majin Z where he is the sensei of the main character Z. On September 15, 2006, in celebration of the 30th anniversary of Kochira Katsushika-ku Kameari Kōen-mae Hashutsujo, the special manga Super Kochikame was released. The chapter entitled This is the Police Station in front of Dragon Park on Planet Namek has Ryotsu Kankichi travel to planet Namek and try to issue Freeza a citation and scold both he and Goku for parking their ships illegally.
Goku and other Dragon Ball characters joined the cast of One Piece in the 2006 crossover manga Cross Epoch. He appears in a single panel of Toriyama's 2013 manga Jaco the Galactic Patrolman, which is set before the events of Dragon Ball. The collected tankōbon volume of Jaco features the bonus story Dragon Ball Minus: The Departure of the Fated Child, depicting how and why Goku's parents sent him to Earth.
Goku has been the subject of various parodies. In the episode "Career Day" of Takeshi's Castle, known in the United States as MXC, the hosts Beat Takeshi and Sonomanma Higashi dressed as popular anime characters, one as Goku as a child, the other as Doraemon. Weekly Shōnen Jump's Gag Special 2005 issue, released on November 12, 2004, featured a Bobobo-bo Bo-bobo one-shot Dragon Ball parody manga, a retelling of the first fight between Goku and Vegeta. In chapter #179 of the Yakitate!! Japan manga, Kawachi executes a Genki-Dama parody called a Shinrai-Dama on the character Katsuo. In the manga and anime series Blood Lad, the character Staz performs the gestures for Goku's Kamehameha, having learned it from his favorite manga superhero, but it has no actual effect.
Goku regularly appears on Fuji TV. In 2003, Goku appeared in the interactive feature Orb's Panic Adventure!, which was featured at the Fuji TV headquarters in the orb section. In this, Freeza attacks a visiting tourist, blasting the orb section free from the rest of the Fuji TV building. Goku fights Freeza over the real life aqua city of Odaiba. In 2004, a sequel called Orb's Panic Adventure Returns! was produced. On March 25, 2006, Goku and Freeza appeared in an original animated short film in the IQ Mirror Mistake 7 segment of the Japanese game show IQ Supplement.
On April 7, 2007, Goku and Fuji TV announcer Masaharu Miyake were commentators on the anime segment in the Japan Great Man Awards titled Who is the Strongest Hero?. The segment featured a special tournament to decide who was the greatest person in Japanese history. During the intermission, Goku promoted the coming release of R2 Dragon Ball DVDs.
Since the U.S. debut of Dragon Ball Z in 1996, Goku has appeared in American pop culture. He was featured in an issue of Wizard magazine in which he and Superman fought a hypothetical battle and won. In the Codename: Kids Next Door episode "Operation: R.E.P.O.R.T", Numbuh Four's version of the story is a parody of the Goku and Freeza's battle in Dragon Ball Z. Goku appears in Robot Chicken in a sketch entitled A Very Dragon Ball Z Christmas, where Goku and Gohan fight an evil Mrs. Claus with Santa's reindeer, in an attempt to save Christmas.
The Saturday Night Live sketch TV Funhouse titled Kobayashi depicts real-life hot-dog-eating champion Takeru Kobayashi as able to transform into a Super Saiyan as he prepares to eat hot dogs; Goku appears briefly near the end. Goku is referenced in the songs "Goku" and "Anime" by Soulja Boy, where he brags that he looks and feels like Goku.
Goku appears in a parody of the film Moneyball on an episode of Mad entitled Money Ball Z, in which Billy Beane drafts Goku and a couple of other Dragon Ball characters into the Oakland A's. In 2013, he and Superman fought in a "Death Battle" episode of the Rooster Teeth web series ScrewAttack and lost. The episode "Goku vs. Superman" in the web series Epic Rap Battles of History won a Streamy Award for Best Music Video.
The use of the Kamehameha attack became an Internet meme which started with Japanese schoolgirls photographing themselves apparently using, and being affected by, this attack. It has attracted considerable media attention in France, Germany, as well as in many Spanish-speaking countries in South America.