The Rocketbarrel Boost is Diddy Kong's Up B move. The distance the Rocketbarrel Boost will cover depends on how much the player charges the jet pack. The player can change the direction that Diddy travels with the jetpack by tilting the control stick while the move is being charged. The move is similar to Firefox. If Diddy is attacked while using the Rocketbarrel Boost, the barrels will fly off and become a projectile.