Rocketbarrel Barrage is Diddy Kong's Final Smash in Super Smash Bros. Global Apocalypse. When used, Diddy is able to fly around dreely in the stage, using his Rocketbarrel pack, and fire extremely powerful shots using his Peanut Popgun. Each shot inflicts 28% damage and any opponent who touches Diddy Kong receives 18% damage. He can only fire peanuts downwards and the Final Smash lasts for about 15 seconds.
Nintendo 64 - Donkey Kong 64 (1999)