Magical Project S Episode 15: Baby Sammy
Episode 15 of 26 of Magical Project S, aired January 10, 1997, 30 minutes. Available with English subtitles and dub where released.
Episode summary
When one of Washu's experiments to turn Sasami into an Adult goes out of control, Sasami ends up becoming a baby, and must face Pixy Misa in her current condition.