Mewtwo (SSBU)/Up smash

Hitbox visualization showing Mewtwo's up smash.

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Overview

Mewtwo thrusts his hand into the air to create a swirling galaxy-shaped cyclone. This move possesses respectable KO power, KOing most middleweights around 90%. It also starts up fast for it's power, with the initial scoop hitbox coming out on frame 9, and the main hitboxes starting at frame 10.

Up smash is fair game as an anti-air, with aforementioned respectable KO power upon connection, and possessing a disjointed hitbox thanks to the cyclone. It can also be used underneath platforms, which Mewtwo can sometimes force opponents onto.

However, the move has sizable ending lag, making it very punishable if whiffed. Additionally, die to the scoop hitbox only lasting for a single frame and jostling, the scoop hitbox can be unreliable to connect with. Additionally, the move can sometimes have trouble hitting correctly on platforms.

Overall, up smash is a high-risk, high reward move that can potentially result in great reward if it connects, but it's flaws make it very unsafe if it whiffs.

Update History

4.0.0

• Up smash's last hit has more knockback scaling (107 → 111).
• Up smash's last hit has a longer hitbox duration (frames 22-23 → 22-25).

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 (early)
2	0	0	2.0%	0		Standard	0	100	90		3.0	top	0.0	11.7	-6.0 to 7.5	1.0×	1.0×	0%							Fire		All	All
Early hit 1 uses a position vector with offsets [0, 24] for 7 frames.
Hits 1 (late), 2, 3
0	0	0	2.0%	0		Standard	0	100	18		4.6	top	0.0	22.0	-5.8	1.0×	1.0×	0%							Fire		All	All
1	0	0	2.0%	0		Standard	0	100	18		4.6	top	0.0	22.0	5.8	1.0×	1.0×	0%							Fire		All	All
2	0	0	2.0%	0		Standard	0	100	40		3.5	top	0.0	14.0	0.0	1.0×	1.0×	0%							Fire		All	All
3	0	0	2.0%	0		Standard	0	100	5		4.0	top	0.0	23.6	0.0	1.0×	1.0×	0%							Fire		All	All
Hit 4
0	0	0	10.0%	0		Standard	60	111	0		6.4	top	0.0	22.0	-7.0	1.0×	1.0×	0%							Fire		All	All
1	0	0	10.0%	0		Standard	60	111	0		6.4	top	0.0	22.0	7.0	1.0×	1.0×	0%							Fire		All	All
2	0	0	10.0%	0		Standard	60	111	0		5.2	top	0.0	23.0	0.0	1.0×	1.0×	0%							Fire		All	All
3	0	0	10.0%	0		Standard	60	111	0		4.0	top	0.0	14.0	0.0	1.0×	1.0×	0%							Fire		All	All

Timing

Charges between	2-3
Hit 1 (early, late)	9, 10-11
Hits 2-3	14-15, 18-19
Hit 4	22-25
Interruptible	69
Animation length	83

Legend (1 square = 1 frame)

Lag time

Charge interval

Hitbox

Hitbox change

Interruptible

Mewtwo's moveset

Neutral attack (1 · 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