After Frieza's final defeat, Vegeta chooses to stay on Earth and has a son named Trunks with Bulma. Three years later, Vegeta finally becomes a Super Saiyan and easily destroys Android 19, sent by Dr. Gero to kill Goku. However, even as a Super Saiyan, he is easily defeated by Android 18. Afterwards, Vegeta ascends beyond the Super Saiyan level while training with Trunks from an alternate dimension in the and pummels the artificial life form Cell, who has absorbed Android 17. Vegeta's overconfidence leads him to allow Cell to absorb Android 18, upon which Cell achieves his "perfect" form. After Vegeta fails to defeat Perfect Cell, he is forced to participate in Cell's martial arts tournament known as the Cell Games, in which he makes a crucial intervention so Gohan can overpower and defeat Cell in his perfect form.