Episode 82, "The Awakening of Super Power! Trunks Has Surpassed his Father Vegeta", or "Put An Asterix By His Number"
*****SPOILERS*****
Synopsis: Trunks continues to power up, unleashing a great amount of energy. He bulks up considerably and attacks Cell. Cell admits that Trunks’ power surpasses his own, but claims that he cannot win. Kuririn lands on an island and revives Vegeta with a senzu. Again, Trunks engages Cell, but can’t manage to land a hit on him despite his massive strength. Back in the Room of Spirit and Time, Goku is impressed with how strong Gohan’s become. Goku transforms into the form Trunks is using. Trunks still can’t land a hit on Cell, frustrated and confused. Cell takes the clear advantage in the fight. Goku explains to Gohan that the form he’s using (and therefore the form Trunks is using) is too bulky and sacrifices speed for strength, and expresses his desire to do better than that. Cell explains as much to Trunks, telling him that that form uses up too much power to maintain itself, even demmonstrating it himself. He claims that even Vegeta knew that, and Trunks realizes that his father must’ve already known. Trunks powers down and tells Cell to kill him. Cell is about to oblige him, but asks if they could further excel if given more time. When Trunks confirms the possibility, and tells him that Goku is training to beat him, Cell backs down, opting instead of hold a tournament where any fighter can fight him, to test his power more. He admits that his only goal is to enjoy himself and flies off, leaving Trunks perplexed.