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Rocketbarrel Boost

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Rocketbarrel Boost
Diddy Kong Up B SSBU.gif
Diddy Kong using Rocketbarrel Boost in Super Smash Bros. Ultimate.
User Diddy Kong
Universe Donkey Kong
Article on Super Mario Wiki Barrel Jet

The Rocketbarrel Boost (バレルジェット, Barrel Jet) (labeled Rocketbarrel Blast in the Super Smash Bros. Brawl instruction booklet) is Diddy Kong's up special move.


Diddy Kong activates a Rocketbarrel Pack and starts charging it, slowing his fall. When the special attack button is released, he propels himself in the chosen direction.

The distance the Rocketbarrel Boost will cover depends on how much the attack is charged. During the charging period, the angle that Diddy travels can be altered by tilting the Control Stick left or right; charging the move longer allows a more significant angle shift.

Touching an opponent while ascending will cause fire damage. In Brawl, the explosion generated from liftoff also has a hitbox which meteor smashes opponents. If Diddy is attacked while using the move, the barrels will fly off and become irregularly-moving, unblockable but reflectable projectiles, exploding on contact with the stage. The player can alter the direction the barrels will move in for a small amount of time before they lose control. If Diddy hits a surface while using the move, he takes about 5% damage.

From Super Smash Bros. 4 onward, the move can be used to travel at more horizontal trajectories, improving the move's uses for recovery.

Barrel jumping[edit]

Barrel jumping is an advanced technique in Brawl and SSB4. It is very similar to Lucas's zap jump except that the zap jump can be used as an extended jump but the timings are almost exact. When taking knockback, if the player performs a midair jump and quickly executes Rocketbarrel Boost at the same time, then the player moves upwards while charging the move. This results from a mechanic in which if Diddy Kong has any residual knockback when attempting to use the move, it will not disrupt Diddy Kong's momentum like it usually does, including momentum from a jump, and this is amplified by Diddy Kong's gravity being reduced while charging the move, causing his jump to be floaty.

Instructional quotes[edit]

Super Smash Bros. Brawl instruction booklet DiddyKongHeadSSBB.png Boost up with rocketbarrels. Press and hold the B Button before releasing to launch higher.
Super Smash Bros. for Nintendo 3DS case foldout DiddyKongHeadSSB4-3.png Rocket through the air and tackle foes. Hold B to travel farther.
Super Smash Bros. Ultimate Move List DiddyKongHeadSSBU.png Rockets through the air and tackles opponents. Can be charged for extra distance.


Special Move customization was added in Super Smash Bros. 4. These are the variations:

1. Rocketbarrel Boost 2. Rocketbarrel Attack 3. Rocketbarrel Kaboom
Rocketbarrel Attack in Super Smash Bros. for Wii U.
Rocketbarrel Kaboom in Super Smash Bros. for Wii U.
"Rocket through the air and tackle opponents. Can be charged for extra distance." "Hits harder than the Rocketbarrel Boost, but doesn't fly quite as well." "Charges faster and steers better, but you'll explode if you hit terrain."
  1. Rocketbarrel Boost: Default.
  2. Rocketbarrel Attack: Deals more knockback, but doesn't fly as well.
  3. Rocketbarrel Kaboom: Faster charge and better steering, but the pack explodes if Diddy hits terrain. It doesn't go as far as Rocketbarrel Boost.


In Super Smash Bros. Brawl[edit]

The Rocketbarrel Pack trophy is unlocked by clearing Level 4 of Target Smash.

Rocketbarrel Pack's trophy in Brawl
Rocketbarrel Pack
An item that looks like regular barrels but becomes a rocket-powered jet pack when Diddy Kong straps them on his back. It's a convenient gadget to have when adventuring, but for whatever reason, Diddy also uses it when playing tennis and basketball. The moves he can pull off with the rocketbarrel pack are so cool that they're almost not fair. Almost.
N64: Donkey Kong 64
Wii: Donkey Kong: Barrel Blast (NTSC), Donkey Kong: Jet Race (PAL)

In Super Smash Bros. 4[edit]

The Rocketbarrel Pack trophy is available in both versions. In Super Smash Bros. for Wii U it is part of the Animal Friends and Items Trophy Box.

Rocketbarrel Pack's trophy in Super Smash Bros. for Nintendo 3DS
Rocketbarrel Pack's trophy in Super Smash Bros. for Wii U
Rocketbarrel Pack
NTSC Two barrels modified into jet engines— throw them on and you're airborne! You can charge them up for a bigger, more accurate boost, but be careful while using these. If you get hit while you're powering up on the ground or zipping around the sky, you'll lose all control of this jet pack!
PAL Two barrels equipped with jet engines. Strap them onto your back and the sky's the limit! Use this contraption to boost your jump and control where you land with pinpoint precision. Just try not to let yourself get attacked when you're charging the jets or in the air, or things'll go haywire!
N64: Donkey Kong 64 (11/1999)
Wii: Donkey Kong Country Returns (11/2010)


The Barrel Jet in Donkey Kong 64.

Rocketbarrel Boost is one of Diddy Kong's moves from Donkey Kong 64, which he can purchase from Cranky's Lab from the second level (Angry Aztec) onwards. Diddy Kong uses it to fly in the air for a short time and can also use it with his Peanut Popguns to shoot at foes in the air. The move also appears in Donkey Kong Country Returns, where it allows Diddy (and Donkey Kong, if the two are paired up) to temporarily hover. The Barrel Jet itself has a different appearance in Donkey Kong Country Returns and the subsequent Donkey Kong Country: Tropical Freeze: a tan cloth backpack containing a single rocket-shaped barrel on a metal arm. Despite this redesign, SSB4 retains the move's appearance from Donkey Kong 64.


Names in other languages[edit]

Language Name
Japan Japanese バレルジェット, Barrel Jet
UK English Rocketbarrel Boost
France French (PAL) Rapido Rocket
Quebec French (NTSC) Tonneau-propulseur
Germany German Raketenrocker
Spain Spanish Barriles retropropulsados
Italy Italian Razzobarili
China Chinese (Simplified) 木桶喷射器
Taiwan Chinese (Traditional) 木桶噴射器
South Korea Korean 나무통제트 Barrel Jet
Netherlands Dutch Rakettonsprong
Russia Russian Реактивное ускорение


  • When playing as Diddy Kong on "low gravity" mode, charging his Rocketbarrel Boost in the air causes him to float up, as if the gravity was reversed. If the player is attacked in midair as Diddy Kong, and jump after the attack, and then use the move again, the same thing occurs.
  • Professional Smash 4 player MVD has earned the title "The Barrel Technician", due to his creative use of Rocketbarrel Boost in tournaments, most notably CEO 2015.