Launch's disorder is similar to the split personality disorder, and is the only character in the "Dragon Ball" universe to have this condition.
Akira Toriyama states that he felt that Launch's change (her hair becoming blonde, her taking on a more aggressive personality) was too similar to a Super Saiyan transformation, and so he had to remove her from Dragon Ball Z (1989); he has also said that he simply forgot about the character as time passed.
In the scene at the saloon, Akira Toriyama manga likeness the Tori-Bot appears on a "Wanted" poster.