"The costume of Great Saiyaman, a hero of justice who guards the city's peace."
The Great Saiyaman Suit was originally created by Bulma, after she was asked by Gohan to create a costume for him to wear, to hide his identity while using his abilities to fight crime and help people. Note that this was after his friends at school began talking about the mysterious Golden Fighter; said Golden Fighter was actually Gohan, who had used his Super Saiyan form to stop some bank robbers while on his way to school. The Great Saiyaman suit, therefore, was intended to prevent his classmates from figuring out he was the golden fighter. Bulma created a special watch which allowed Gohan transform into his superhero alter-ego, which he dubbed Great Saiyaman.
The original Great Saiyaman Suit worn by Gohan featured a helmet, red cape, green gi with a black bodysuit worn underneath, as well as white gloves and boots identical to those worn with the Battle Armor model created by Bulma during the Android Saga (presumably she may have reused the gloves and boots as she often produced them for her husband Vegeta as he often wore them as part of his normal attire). Gohan can don the suit by pressing the red button on his Great Saiyaman Watch allowing him to transform into Great Saiyaman instantly. The watch itself is worn on his wrist over top his suit's left glove when the suit is worn. However, despite his disguise, Videl managed to figure out his true identity and tricked Gohan into revealing it to her, blackmailing him into teaching her how to use Flight and entering the 25th World Martial Arts Tournament.
Gohan was forced to replace the Great Saiyaman Helmet with a white bandana (in the manga the bandana is orange like his helmet) and Sunglasses in order to participate in the World Martial Arts Tournament as its rules forbid the use of armor. However, when Videl was brutally beaten by Spopovich, Gohan's anger caused him to transform into his Super Saiyan form, which caused his bandana and cape to fall off later revealing Great Saiyaman with both the Golden Fighter and Gohan to his classmates Erasa and Sharpner when he transformed into a Super Saiyan and Super Saiyan 2 during his match with Kibito, however Piccolo destroyed all the cameras preventing Great Saiyaman's identity from being revealed to the general public. Gohan's Great Saiyaman Suit was heavily damaged during his battles with Dabura and Majin Buu and later replaced with Supreme Kai Clothes via Kibito's Magic Materialization after Kibito suggested that Gohan's clothes aren't suitable for training which were later turned by Kibito into the Turtle School uniform which Ultimate Gohan wore when he fought Super Buu. However, after the defeat of Kid Buu, Gohan obtained another identical Great Saiyaman Suit. In the films, Fusion Reborn and Wrath of the Dragon Gohan continued to wear the bandana and sunglasses with the suit instead of the helmet despite the fact he only wore them originally for the tournament, though in Fusion Reborn, Gohan ditched the bandana, sunglasses and cape and continued to wear the Great Saiyaman Suit for the rest of the movie. However, in Dragon Ball Super, Gohan returns to wearing the helmet he originally wore as Great Saiyaman.
After the defeat of Kid Buu, Videl acquired her own Great Saiyaman Watch to transform into Great Saiyaman 2 (or Great Saiyawoman in Funimation dub) and joined Gohan in fighting crime as a superhero team. Videl's suit resembles Gohan's though with a different color scheme (her cape is a pinkish-orange and she wears a teal gi with a purple bodysuit underneath), her helmet features a yellow heart, though she wears white boots and gloves of the same style as Gohan's Great Saiyaman Suit. Like Gohan she wears her Great Saiyaman watch over her suit's left glove.
During the filming of the Great Saiyaman film in Dragon Ball Super, Barry Kahn wears a version of Great Saiyaman's outfit while playing the role of Great Saiyaman in the film "Great Saiyaman vs. Mr Satan", ironically with Mr. Satan's son-in-law Gohan (who's identity as the real Great Saiyaman is still a secret) acting as his stunt double. Additionally pop idol Cocoa Amaguri plays the role of the film's damsel in distress. During the filming, Gohan removes his suit's helmet revealing that the suit's back bodysuit cover his head and part of his chin with only his face left uncovered. Gohan is also shown to wear his glasses underneath his helmet. Ironically, Barry Kahn is jealous of Gohan being married to Mr. Satan's daughter Videl and him getting all the attention as his stunt double in the movie, to the point he forces pop idol and co-star Cocoa Amaguri to help him blackmail Gohan into leaving the film and tries to turn Videl against Gohan by making it appear he is having an affair with Cocoa. Cocoa learned Gohan's secret identity after overhearing Gohan's conversation with Bulma who is revealed to have designed and via Capsule Corporation supplied the Great Saiyaman Suits used during the film, thus only she, Gohan, Videl, Mr. Satan, and Cocoa are aware that the suits used in the film are technically genuine Great Saiyaman Suits and not just film props.
Barry plans to turn Videl against her husband fails as she knows Gohan would never cheat on her due to his personality, causing Barry to threaten to expose Gohan's secret identity. However Barry is possessed by the escaped alien criminal Watagash, who grows more powerful due to Barry's evil and sadistic nature to transform him allowing him to defeat Great Saiyaman in his base form. However Great Saiyaman transforms into a Super Saiyan while wearing his helmet for the first time in the series. While using the Super Saiyan form in his guise as Great Saiyaman he is referred to as Super Great Saiyaman by the film's director. Super Great Saiyaman manages to defeat Watagash easily with his Super Great Saiyaman Beam freeing Barry from his possession and the alien criminal is apprehended by Jaco. Barry's plan to ruin Gohan falls apart when Cocoa threatens to expose him as the monster Great Saiyaman fought, preventing Gohan's identity from being exposed. Gohan later decides to use the name Super Great Saiyaman when using his Super Saiyan form while disguised as his alter-ego. Later when he challenges Goku to a fight as Great Saiyaman, after Goku transforms into a Super Saiyan Gohan throws off his helmet before transforming into his Super Saiyan form.
There is somewhat of a running gag of other characters save for Gohan, Videl, and Bulma finding the suits to be lame or ridiculous. Originally Goten thought the suit was cool and asked if Gohan could get him one. However, in Dragon Ball Super, when Gohan told Goten he had Bulma make him one, Goten didn't want it and even called it lame. Both Goku and Piccolo have made it clear that they dislike Gohan wearing the costume.
In Dragon Ball Z: Fusion Reborn, Gohan uses his Great Saiyaman Suit while fighting against the denizens of Hell alongside Videl. When confronted by Frieza, Gohan shows his face and poses identifying himself as Gohan (receiving applause and praise from Videl) to Frieza who orders the villains to attack the hybrid Saiyan but Gohan goes Super Saiyan and rushes right towards Frieza, destroying him with an ki blast causing all the assembled villains to flee.
In Dragon Ball Z: Wrath of the Dragon, Videl as Great Saiyaman 2 (Great Saiyawoman in the Funimation dub) fights criminals alongside Great Saiyaman 1. Eventually they save Hoi from jumping off a building. Hoi tells them the story of Tapion a legendary hero who was sealed in a magical Music Box which Hoi wishes to open which leads to the Dragon Team using the Dragon Balls to free Tapion, though unfortunately Tapion has part of the monster Hirudegarn sealed away within him. Later the Saiyan Squad, confront the low body portion of Hirudegarn that was freed by the death of Tapion's younger brother Minotia. During the film, Gohan utilizes his Potential Unleashed state while wearing his suit without his turban and glasses.
In Dragon Ball Z: Battle of Gods, after getting drunk while at Bulma's birthday party, Gohan transforms into Great Saiyaman when the age regressed Mai threatens Trunks with her gun. Though he deflects a bullet shot by Mai, his drunken state he accidentally deflects the bullet which injuries Videl by accident, though fortunately Dende is on hand to heal her discovering she is pregnant (with Pan) while healing her only for her to tell him to keep it a secret for the time being.
Video Game Appearances
The Great Saiyaman Suit's worn by Gohan and Videl often appear in various video games as either alternate costume/skins (Dragon Ball Xenoverse), transformations (Dragon Ball Z: Budokai Tenkaichi 2 and Dragon Ball Z: Budokai Tenkaichi 3), or even separate playable characters (Budokai series, Dragon Ball Xenoverse 2, Dragon Ball Fusions, and World Mission). In some games, like Dragon Ball Z: Taiketsu the Great Saiyaman Suit (w/ sunglasses) appears as Adult Gohan's standard outfit. Other games feature Gohan's battle damaged Great Saiyaman Suit from the Majin Buu Saga as an alternate costume for Gohan (in some game's Gohan damaged Great Saiyaman Suit appears as the result of battle damage).
In Dragon Ball Online, it is revealed that in Age 820 when Earth was attacked by the remnants of the Frieza Force after the death of Mr. Satan who the Guard Troops that lead the Frieza Force believed was responsible for the death of Frieza, the remaining Z Fighters Krillin, Tien Shinhan, Gohan, Goten, Trunks, Uub, and Pan wear Saiyaman-like costumes to hide their identities while combating the Frieza Force, but their ki-based fighting style becomes a hot topic and global interest in the use "ki" (introduced to general populace of Earth in Age 804 by Gohan's book Groundbreaking Science) escalates.
In Xenoverse, the Great Saiyaman Suit appears as clothing options for the Future Warrior and its appearance depends on the warriors selected gender. Additionally, the Great Saiyaman Helmet appears as an accessory and its design also depends on the warrior's selected gender. Great Saiyaman and Great Saiyaman 2 appear as alternate costume skillsets for Gohan and Videl. Great Saiyaman can also transform into a Super Saiyan.
In Dragon Ball Fusions, the EX-Fusion of Gohan and Videl, Great Saiyaman 12 wears a Great Saiyaman Suit that is a fusion of both Great Saiyaman 1 and Great Saiyaman 2's suits. Ginyuman and Great Jaco also have their own suits formed by their armor fusing with Gohan's Great Saiyaman Suit.
In Dragon Ball FighterZ, Great Saiyaman fights alongside Videl with his bandana and sunglasses being his default outfit however by utilizing a special input when selecting Videl, she will switch to her pigtails and high school clothes while Great Saiyaman switches to his helmet. Videl's Color 02 costume recolors Gohan's suit to resemble Great Saiyaman 2's color scheme while recoloring Videl's clothes to resemble the color scheme of her "Fight" T-shirt.
In Jump Force, the Great Saiyaman Suit appears as a special costume set for the player's avatar which can be acquired as a Raid Boss Event reward.
In Dragon Ball Z: Dokkan Battle, Kid Trunks dons a Great Saiyaman Suit during "Perfect Disguise?! SOS to the Fortune-Teller" Event. Great Saiyaman 1 and 2 are playable as separate characters and as a pair as well as having playable helmetless variants. Additionally, Great Saiyaman 3 and Great Saiyaman 4 from Super Dragon Ball Heroes also appear as playable characters. Great Saiyaman Gohan is also playable in his bandana and sunglasses, sunglasses without bandana, and Great Saiyaman unmasked from the World Tournament & Babidi Saga. He is also playable in his Super Saiyan and Super Saiyan 2 forms as well as playable in the black bodysuit of the Great Saiyaman Suit. The New Hero of Satan City Gohan (Teen) card transform into New Hero of Satan City Great Saiyaman card in mid battles.
In Dragon Ball Xenoverse 2, the Great Saiyaman Suit return as clothing and accessory options for the Future Warrior. Great Saiyaman and Great Saiyaman 2 also appear as separate playable characters instead of alternate costume skillsets for Gohan and Videl as they were in Xenoverse. Both Great Saiyaman and Great Saiyaman 2's skillsets are named Great Saiyaman Suit in Xenoverse 2. As part of the 1.14.00 Update DLC, Majuub appears at the World Martial Arts Tournament Arena in Conton City. If spoken to by the Future Warrior, Majuu asks it they know Great Saiyaman, as he looks up to him due to him being a hero who fights for peace and justice who he thinks is cool, with Majuub wanting to learn how to become a hero from him.
In Dragon Ball Legends, Great Saiyaman 1 (DBL-EVT-05S) appears as a SPARKING "Legends Road: Justice" event character which represents Gohan in his original Great Saiyaman Suit. Great Saiyaman 2 appears as a SPARKING rarity character. Additionally, the Saiyan Squad (Great Saiyaman 1 & 2) are playable via Great Saiyaman 1 & 2 (Assist)(DBL27-05S), which consists of Great Saiyaman 1 as the main fighter with Great Saiyaman 2 as an "Assist" during certain Arts. Great Saiyaman 2 (DBL11-06S) also appears as a solo SPARKING rarity character based upon her appearance in Wrath of the Dragon.
In Dragon Ball Z: Kakarot, Gohan dons the Great Saiyaman Suit as he did during the main story.