Episode 81, "Vegeta’s Full-Power Strike! But Cell’s Terror Grows and Grows"
*****SPOILERS*****
Synopsis: Gohan continues training in his Super Saiyan form. Meanwhile, Vegeta prepares to fire a massive blast at Cell. He calls the attack "Final Flash". He fires it and it seems to overwhelm Cell. When the smoke and dust clears, a huge chunk of Cell’s body is missing and Vegeta thinks he’s obtained victory. However, Cell is bluffing at his injury, and regenerates. Vegeta fires at Cell frantically, but it does no damage. Cell knocks Vegeta out, and he reverts out of his Super Saiyan form. Trunks unleashes his power, his body transforming, bulking up considerably. Cell and Trunks size each other up and then begin their combat. Kuririn flies off with Vegeta, with Cell acknowledging that he knew Trunks steered their fight away from Vegeta on purpose. He tells Trunks that his interest is now with him. Trunks begins to power up even more.

