Jet

Overview

Jet is one of the most commonly used abilities in KSS speedruns, utilized in almost every sub-game and category.

Moveset

Grounded Moves

Tap Kick Quickly press and release Y jet ability	Disjointed short kick that can hit twice Only available on ground Used for bossfights. (EX: Heavy Lobster, Whispy Woods, and Bonkers fights)

Jet Kick Hold Y, release before full charge jet ability	Kirby jet dashes forward and ends with a kick Has a fairly short ending animation, though still slower than jet dash chains Has a more disjointed hitbox than the midair jet moves, making it useful for charging through enemies with higher health (Knuckle Joe, Sword Knight, etc) Also can be used for spacing setups in certain areas (EX: mecheye screen 2)

Charge Moves

Charging Hold Y jet ability	Charging stance, if held for ~2 seconds Kirby will become fully charged Can be cancelled by shielding, leading Kirby to return to normal ground state Can be cancelled by jumping, leading kirby to Midair Neutral state Charging can be performed in the air if kirby is in the Midair Neutral state where it can be cancelled by hovering

Full Jet Charge Hold Y until full charge and release jet ability	test2 test3

Jet Cracker Hold Y until full charge and release, Repress Y during jet dash jet ability	test2 test3

Jet Suplex Hold Y until full charge and release while holding Up/Forward/Down when close to enemy jet ability	test2 test3

Midair Dash Moves

jet Press Y after running and jumping jet ability	test2 test3

Midair Neutral Moves

jet Tap Y in Midair Neutral state jet ability	test2 test3

jet Hold Y and release before full charge in Midair Neutral state jet ability	test2 test3

Advanced Techniques

Cancel Charge

Kirby can store his Jet charge by jumping, sliding, guarding, or climbing up a ladder in the middle of charging Jet.
Capsule J cannot cancel by sliding (he will jump instead).

Carry Momentum Underwater

By activating a tap jet (no dash) in the air while entering water at the same time as hitting a wall, the tap jet's X-speed will be maintained underwater.
Carrying X-speed is frame-perfect.
Y-speed will also be affected if there is wind blowing up in the room (ex. Halfmoon).
Carrying Y-speed has more frame leniency, but is still a tight window.

Avoid Unblockable Attacks

While charging Jet, Kirby is immune to attacks such as King Dedede's inhale or Combo Cannon's lasar beam.
This also happens when inhaling without an ability.

Technical Information

Moveset Specifications

Move Name

Button Action

Application

Range

Power

Attributes

Knockback

Breaks Blocks?

Goes through...

Other Notes

Exhaust Gas

Far

6

Sizzle

Strongest

Yes

Enemies

Appears in various Jet moves

Store Power

Hold Y

Self

Invincible?

Save Stored Power

B / Down + B / L / R (all on ground)

Self

Jet Kick (weak)

Press Y (on ground)

Close

14

None

Medium

Yes

Emits exhaust gas

Jet Kick (strong)

Hold Y for a moment, then release (on ground) Helper only: Dash + Y (on ground)

Close

22

None

Strongest

Yes

Emits exhaust gas

Jet Heading (weak)

Press Y (in air)

Close

14

None

Strongest

Yes

Emits exhaust gas

Jet Heading (strong)

Hold Y for a moment, then release (in air) or Dash + Y (in air)

Close

22

None

Strong

Yes

Emits exhaust gas Invincible (Helper only)

Jet Dash

Hold Y until max charge, then release

Close

30

None

Strong

Yes

Emits exhaust gas Invincible

Jet Cracker

Press Y, hit an enemy, or hit a wall while in Jet Dash

Far

45

None

Strong

Yes

Enemy/Wall

Invincible

Jet Blow

Release Y near enemy + left/right (on ground)

Cast(?)

∞

Scores twice

Bu(?)

60

Diving Rocket

Maximum charge + Release Y near enemy + left/right

Cast(?)

50

Emits exhaust gas

Bu(?)

80

Body

Close

30

None

Strong

Yes

Can go through walls

Hover

B (in air)

Self

Reset accumulated Jet power

Ultra-Jet Jump

B (in air with max charge)

Body

Close

200

None

Strongest

No

Invincible Instantly kills mid-bosses Ineffective against bosses

Explosion

Far

26

None

Strong

Yes

Enemy/Wall

About Charge Value

When charging jet, the charge value increases by 1 every frame in RAM address ????.
The initial value of this address is 0, and this value stops increasing when Kirby stops charging. This value will continue to increase while Kirby charges, even at max charge, and will stop at 32767.
Below is a table that shows what RAM value corresponds to the Jet charge state.

Charge State	RAM Value
No charge	0 - 5
Mid charge	6 - 40
Max charge	41 - 32767

Glitches

Simultaneous Up+Down Bug

See KSS:Glitches#Simultaneous...

Jet Suplex

Score Bug

Defeating an enemy with Jet Suplex will reward double the Score originally intended.

Collision

Jet Suplex will ignore wind and water currents during its animation. This will last until you land and bounce backward.
Jet Suplex can also allow Kirby to clip through terrain during autoscrollers (See KSS:Glitches#Wallclips.

Other Information

Diving Rocket Collision

Diving Rocket has three hit detections: Kirby himself, the enemy he is holding, and the flames behind him.
Kirby's body is the same as Jet Dash, and the flame behind it is the same as when it is charging power.

Capsule J Air Jump

Normally, Capsule J cannot jump in the air. However, he can jump in mid-air while he is charging power.

Dash Jet Kick

Limited to Capsule J, you can perform a strong Jet Kick by pressing Y while dashing.

Capsule J Mid-Air Jet (Strong)

Capsule J has invincibility when using Strong Mid-Air Jet. This also applies if Capsule J bounces off a wall.