Gotenks

Gotenks is the immensely powerful result of Trunks and Goten successfully using the Fusion Dance, and the first successful fusion dance character to be seen in the Dragon Ball series. He likes to call himself, 'The Hero of Justice'. His maturing is demonstrated in taking his fights seriously.

Failed
Nicknamed "Gunks" by Pra due to disgust in both his appearance and personality.

Fat
Trunks stretches his finger at the moment he and Goten say, "-sion!". The result is a fat version of Gotenks. He tries to run but tires very quickly. For a moment, Krillin and Yamcha think that the fusion has succeeded and that Gotenks has to be fat to regulate his power, similarly to Majin Buu. However, they soon change their minds when they see that fat Gotenks becomes winded after a brief and slow run. Fat Gotenks is also seen in ''Dragon Ball: Yo! Son Goku and His Friends Return!!'', Goten and Trunks as Fat Gotenks say that they did not practice the fusion dance for a long time, and then they defuse. He is a playable character in Dragon Ball Heroes, but in other video games, he can not do any special attacks and is already tired after a few kicks and punches. In the case of Dragon Ball Z: Buu's Fury, neither he nor the skinny variant can even move, and defuse automatically after a few seconds so that a successful fusion can be performed. Fat Gotenks is playable in Dragon Ball Z: Dokkan Battle, under the name Gotenks (Failure) A.

Skinny
Goten and Trunks achieve this form of Gotenks when the Fusion Dance goes wrong for a second time. The failure is due to a lack of coordination, as when Goten and Trunks say "HAAH," their fingers do not meet. Skinny Gotenks can barely stand on his feet without getting tired, and he coughs a lot as well. Comically, after seeing this form of Gotenks, Chi-Chi exclaims "Oh no! I can't love that!" to which Master Roshi asks "Why not? He's my age!", Krillin responds with "No...older!" Yamcha says, "His ribs are showing! We need to beef him up or something." Skinny Gotenks is playable in Dragon Ball Z: Dokkan Battle, under the name Gotenks (Failure) B.