Kirby (SSBU)/Up smash

Hitbox visualization showing Kirby's up smash.

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Overview

A bicycle kick. For the entire duration of the hitboxes (frames 12-17), Kirby's foot is intangible. It has the fastest interruptibility of Kirby's smash attacks (FAF 46, 27 frames of ending lag), making it the safest on shield and consists of a clean hit that hit lasts for its first three frames, a mid hit for two frames and a late hit on the last active frame. The mid hit has larger hitboxes than the rest of the attack, but the clean hit is stronger, and it has good knockback overall. The attack has three hitboxes, including a farther sourspot that deals less damage. Good anti-air due to its vertical range and the feet intangibility, and compared to other up smashes, it has deceptive horizontal range in front of Kirby.

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	15.0%	0		Standard	36	104	0		5.2	kneer	0.0	0.0	0.0	1.0×	1.0×	0%							Kick		All	All
1	0	0	15.0%	0		Standard	36	104	0		5.2	kneer	1.5	-2.6	0.0	1.0×	1.0×	0%							Kick		All	All
2	0	0	14.0%	0		Standard	36	104	0		5.2	kneer	1.5	-6.2	0.0	1.0×	1.0×	0%							Kick		All	All
Late hit
0	0	0	14.0%	0		Standard	20	98	0		6.3	kneer	0.0	0.0	0.0	1.0×	1.0×	0%							Kick		All	All
1	0	0	14.0%	0		Standard	20	98	0		6.3	kneer	0.0	-2.5	0.0	1.0×	1.0×	0%							Kick		All	All
2	0	0	13.0%	0		Standard	20	98	0		6.3	kneer	0.0	-5.2	0.0	1.0×	1.0×	0%							Kick		All	All
Latest hit
0	0	0	13.0%	0		Standard	10	52	0		5.0	kneer	0.0	0.0	0.0	1.0×	1.0×	0%							Kick		All	All
1	0	0	13.0%	0		Standard	10	52	0		5.0	kneer	0.0	-2.5	0.0	1.0×	1.0×	0%							Kick		All	All
2	0	0	12.0%	0		Standard	10	52	0		5.0	kneer	0.0	-5.2	0.0	1.0×	1.0×	0%							Kick		All	All

Timing

Charges between	8-9
Foot intangible	12-17
Clean hit	12-14
Late hit	15-16
Latest hit	17
Interruptible	46
Animation length	48

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