Ep. 21: This Ol' Gal's the Leader of the Amazon Tribe!

21

Ranma finds out that Cologne cursed him with "Full Body Cats Tongue," which prevents him from reverting from his female form. To get the antidote, the Phoenix Pill, from Cologne, Ranma must master the "Hissatsu Tenshin Amaguriken" technique in his female form. (Source: Wikipedia)