Super Android 13 ('Extreme Battle! The Three Great Super Saiyans!' in Japanese) is the 7th Dragon Ball Z Movie.
Creating three new androids in the spirit of Dr. Gero's hatred for Son Goku, Dr. Gero's computer sends the androids out to complete Gero's plan on killing Goku. The first two to go out are 14 and 15, who attack Goku while he is shopping with Chi-Chi and Son Gohan. Not wanting to destroy the city they're in, Goku and Future Trunks leave for an uninhabited Arctic area. The fight seems even until Android 13 shows up - at least until Vegeta and Piccolo arrive. Just when the fight seems won, 13 shows off his "Super" form, changing the battle's outcome yet again. But then Goku prepares a Genki Dama, and after transforming into a Super Saiyan he absorbs it's energy into his body, and destroys the android menace.