Sonic (SSBU)/Up aerial

Hitbox visualization showing Sonic's up aerial.

Overview

A scissor kick. Its very large auto-cancel window makes it deceptively safe and easy to avoid even its fairly low landing lag. In addition to being a reliable follow-up from Spin Dash, Spin Charge, and Spring Jump-assisted combos, it is a viable KOing option near the upper blast line, especially as a follow-up from Spring Jump. Both hits don't always connect very reliably however. Despite this, the move still possesses good combo potential should the second hit land. It also has the lowest start up (tied with forward aerial) of Sonic's aerials, coming out on frame 5.

Update history

9.0.0

• Up aerial's second hit has an additional hitbox below Sonic, allowing it to connect more reliably from the first hit.

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
Hit 1
0	0	0	3.0%	0		Standard	0	50	90		3.0	top	0.0	7.0	3.0	1.0×	1.0×	0%							Kick		All	All
1	0	0	3.0%	0		Standard	0	50	90		3.0	top	0.0	7.0	-3.0	1.0×	1.0×	0%							Kick		All	All
2	0	0	3.0%	0		Standard	0	50	120		4.0	top	0.0	7.0	7.0	1.0×	1.0×	0%							Kick		All	All
3	0	0	3.0%	0		Standard	0	50	120		4.0	top	0.0	7.0	-7.0	1.0×	1.0×	0%							Kick		All	All
Hit 2
0	0	0	8.0%	0		Standard	66	68	0		7.0	top	0.0	20.0	0.0	1.2×	1.0×	0%							Kick		All	All
1	0	0	8.0%	0		Standard	66	68	0		6.0	top	0.0	15.0	0.0	1.2×	1.0×	0%							Kick		All	All
2	0	0	8.0%	0		Standard	66	68	0		4.5	top	0.0	10.0	0.0	1.2×	1.0×	0%							Kick		All	All
3	0	0	8.0%	0		Standard	66	68	0		4.8	top	0.0	10.0 to 8.0	0.0	1.2×	1.0×	0%							Kick		All	All

Timing

Attack

Initial autocancel	1-4
Hit 1	5-7
Hit 2	14-15
Ending autocancel	16-
Interruptible	40
Animation length	54

Landing lag

Interruptible	14
Animation length	21

Legend (1 square = 1 frame)

Lag time

Hitbox

Autocancel

Interruptible

Trivia

• The immediate auto-canceling of this move is a coding error caused by the wrong type of timing function being used. In the move's scripts, the second hit is deleted on frame 16, then a timer with a count of 11 is placed in the next line for the auto-cancel window. However, this is an asynchronous timer, which enables the auto-cancel on frame 11, rather than a synchronous timer, which would enable it 11 frames after the hitboxes are deleted (on frame 27). As a result, the auto-cancel is instead enabled on frame 16, as the line is still read after the timer for deleting the hitboxes.
  • This was also the case for the move in Brawl and Smash 4.

Sonic's moveset

Neutral attack (1 · 2 · 3) · 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