Untitled Sailor Moon/Gotham Girls Crossover Special

 is a crossover TV special.

Plot
Harley Quinn, Poison Ivy, Talia al Ghul, and Lady Shiva gas up Gotham City and Tokyo which makes every people Joker-ized. Batgirl and the Sailor Scouts, all wearing gas masks to prevent themselves from getting Joker-ized, must stop them from doing so.

Sailor Moon

 * Sailor Moon
 * Sailor Mercury
 * Sailor Mars
 * Sailor Jupiter
 * Sailor Venus

Gotham Girls

 * Batgirl/Barbara Gordon
 * Catwoman/Selina Kyle
 * Harley Quinn/Harleen Quinzel
 * Poison Ivy/Pamela Isley
 * Talia al Ghul
 * Lady Shiva/Sandra Woosan
 * Summer Gleeson
 * Officer Montoya

Sailor Moon

 * Mae Whitman as Serena/Sailor Moon
 * Lacey Chabert as Amy/Sailor Mercury
 * Vyvan Pham as Raye/Sailor Mars
 * Kate Micucci as Lita/Sailor Jupiter
 * Ashley Johnson as Mina/Sailor Venus

Gotham Girls

 * Tara Strong as Batgirl/Barbara Gordon, Harley Quinn/Harleen Quinzel, and Poison Ivy/Pamela Isley
 * Grey Griffin as Catwoman/Selina Kyle and Summer Gleeson
 * Jennifer Hale as Talia al Ghul and Officer Montoya
 * Tania Gunadi as Lady Shiva/Sandra Woosan

Trivia

 * Batgirl, Catwoman, Harley Quinn, Poison Ivy, Talia al Ghul, Summer Gleeson, and Officer Montoya's models are based on the designs from the 1992 Batman animated series.