Kirby (SSBU)/Up smash

Hitbox visualization showing Kirby's up smash.

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 (27 frames of ending lag) 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 fairly powerful, having 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 foot intangibility.

Update History

3.0.0

• Its clean hit has a longer duration, with the late hit having a shorter duration instead (frame 12 (strong)/13-14 (mid)/15-17 (late) → 12-14/15-16/17).

6.0.0

• Its clean sourspot deals more knockback (30 base/99 scaling → 36/104), with the knockback values matching the sweetspots.

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	footr	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	footr	1.5	-6.2	0.0	1.0×	1.0×	0%							Kick		All	All
Mid 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	footr	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	footr	0.0	-5.2	0.0	1.0×	1.0×	0%							Kick		All	All
Late 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	footr	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	footr	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
Mid hit	15-16
Late hit	17
Interruptible	46
Animation length	48

Hitboxes
Foot

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
Floor attack (front) · Floor attack (back) · Floor attack (trip) · Edge attack
Neutral special · Side special · Up special · Down special · Final Smash