Wii Fit Trainer (SSBU)/Back aerial

Hitbox visualization showing Wii Fit Trainer's back aerial.

Overview

Wii Fit Trainer performs the Cobra pose, stretching her spine and striking behind her with both legs. Like her forward tilt, Wii Fit Trainer's back aerial is notorious for its immense strength relative to its extremely low startup time, coming out on frame 5. This is Wii Fit Trainer's fastest and strongest aerial attack, and is one of her most lethal kill options. All this in combination with its good coverage low to the ground (even when used while rising) causes back aerial to be considered her best out of shield option as well, although only usable when the opponent attacks from behind. The attack also covers a fairly large horizontal distance, making it somewhat useful as an approach tool when RAR'd. Due to the nature of the Cobra pose, back aerial can also be used effectively to either fade back with or cross up the opponent's shield, increasing its general safety. The late hit of back aerial has low knockback and a low launch angle, which can sometimes lead to jablock setups around mid percents if it connects as Wii Fit Trainer lands.

Despite back aerial's excellent speed and strength, it also has some major drawbacks. The first of these is the move's heavy endlag when used in the air; it is the only one of Wii Fit Trainer's aerials that cannot be autocanceled from a short hop. This makes the move fairly committal when used without landing immediately, although this issue can be somewhat remedied by Deep Breathing's fall speed increase. Secondly, the move's high knockback only comes from its sweetspot, which is small and only has a single active frame. This causes the move to sometimes be inconsistent and fail to take stocks in critical situations.

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	13.5%	0		Backward	40	100	0		2.2	top	-2.0 to 2.0	4.3	-11.0	1.2×	1.0×	0%							Kick		All	All
1	0	0	11.0%	0		Backward	20	102	0		4.5	top	0.0	4.3	-10.0	1.0×	1.0×	0%							Kick		All	All
2	0	0	9.0%	0		Backward	10	102	0		3.8	top	0.0	4.3	-6.0	1.0×	1.0×	0%							Kick		All	All
Late hit
1	0	0	6.0%	0		Backward	30	102	0		3.5	top	0.0	4.3	-10.0	1.0×	1.0×	0%							Kick		All	All
2	0	0	6.0%	0		Backward	20	102	0		3.0	top	0.0	4.3	-6.0	1.0×	1.0×	0%							Kick		All	All

Timing

Attack

Initial autocancel	1-2
Clean hit	5
Late hit	6-11
Ending autocancel	43-
Interruptible	49
Animation length	53

Landing lag

Interruptible	13
Animation length	19

Legend (1 square = 1 frame)

Lag time

Hitbox

Hitbox change

Autocancel

Interruptible

Trivia

• Wii Fit Trainer's back aerial is often likened to Zelda's Lightning Kicks, since they all happen to share identically sized sweetspots that last a single frame, along with much larger sourspot hitboxes.

Wii Fit Trainer'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