"An Instant Rush Strike attack! Use a serial attack to launch your enemy straight up!"
Trunks charges a yellow aura and then rushes at the opponent, unleashing a combination of many punches and kicks ending with a powerful downing strike.
Video Game Appearances
In Dragon Ball Xenoverse, Final Cannon appears as one of Kid Trunks' Super Skills. It can be obtained by the Future Warrior as a random reward in Parallel Quest 53: "Dangerous Duo! Warriors Never Rest".
In Dragon Ball Xenoverse 2 it returns as one of Kid Trunks' Super Skills which can be obtained by the Future Warrior as a random reward dropped by Kid Trunks in Parallel Quest 52: "Super Saiyan Bargain Sale". After the 1.09.00 Update, it can be added to Gotenks' custom skillset after it is purchased for 5 TP Medals in Partner Customization, which Gotenks presumably acquired from Trunks being one of his two fusee. Additionally it can also be added to Pan's custom skillset after it has been purchased for 5 TP Medals in Partner Customization. Pan likely learned the technique from Kid Trunks' adult self.