Kirby (SSBU)/Down smash

Hitbox visualization showing Kirby's down smash.

Overview

A spinning split kick. It has the fastest startup of Kirby's smash attacks (frame 7), but the highest amount of ending lag (FAF 51, 31 frames of ending lag). It is a semi-spike, with Kirby's feet being intangible, starting from frame 3 and lasting until the clean hit ceases at frame 11. The clean hit deals 14% and has above average power for a semi-spike, while the late hit deals 10%. Due to its long active duration, it's Kirby's best option for 2-framing. The first hit of forward aerial can also set up into down smash, although forward smash is generally preferred due to the latter’s higher knockback and more favorable angling.

As of patch 8.0.0, due to the changes of Kirby’s second and third hits of forward aerial, it can act as a consistent whiff punish kill confirm. Down smash’s higher knockback and faster frame data gives it more potency as a punish option, ledgetrapping option, and kill move.

Update History

8.0.0

• It has has less startup (frame 10 → 7), with its total duration reduced as well (FAF 54 → 51).
• It has more knockback scaling (89 → 94).

Hitboxes

ID	Part	Rehit rate	Damage	SD	Angle	Angle type	BK	KS	FKV	Set weight	Radius	Bone	Offset			H×	SDI×	T%	Clang	Rebound	Effect	Type	G	A	Sound	Direct	Hit bits	Hit part	Blockable	Reflectable	Absorbable	Flinchless	No GFX	Heedless
Clean hit
0	0	0	14.0%	0		Standard	25	94	0		4.0	footr	0.0	-6.0	0.0	1.0×	1.0×	0%							Kick		All	All
1	0	0	14.0%	0		Standard	25	94	0		4.0	footl	0.0	-6.0	0.0	1.0×	1.0×	0%							Kick		All	All
The late hit reduces all hitboxes' damage to 10.0%.

Timing

Charges between	2-3
Feet intangible	3-11
Clean hit	7-11
Late hit	12-19
Interruptible	51
Animation length	60

Hitboxes
Feet

Legend (1 square = 1 frame)

Lag time

Charge interval

Hitbox

Hitbox change

Vulnerable

Intangible

Interruptible

Kirby's moveset

Neutral attack (1 · 2 · inf) · Forward tilt · Up tilt · Down tilt · Dash attack · Forward smash · Up smash · Down smash
Neutral aerial · Forward aerial · Back aerial · Up aerial · Down aerial
Grab · Pummel · Forward throw · Back throw · Up throw · Down throw
Forward roll · Back roll · Spot dodge · Air dodge · Techs
Floor attack (front) · Floor getups (front) · Floor attack (back) · Floor getups (back) · Floor attack (trip) · Floor getups (trip)
Edge attack · Edge getups
Neutral special · Side special · Up special · Down special · Final Smash