Dragon Ball Z: Super Android 13!

Dragon Ball Z Movie 07: Kyokugen Battle!! Sandai Super Saiyajin

Dr. Gero's Androids #13, #14, and #15 are awakened by the laboratory computers and immediately head to the mall where Goku is shopping. After Goku, Trunks, and Vegeta defeat #14 and #15, #13 absorbs their inner computers and becomes a super being greater than the original three separately were. Now it is up to Goku to stop him. (Source: ANN)