Bowser Jr. (SSBU)/Up smash

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The editor who added this tag elaborates: Changes in the 13.0.1 update

Hitbox visualization showing Bowser Jr.'s up smash.

Overview

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Bowser Jr. performs a handstand to attack with the Junior Clown Car's spinning propeller. It is Bowser Jr.'s fastest smash attack, with its multiple hits being useful for pressuring shields or denying aerial approaches. Does 1% at the first hit, 1.3% for hits 2-4, 2.3% for hit 5, and 6% on the last hit.

This move received major buffs during game updates. Version 3.1.0 increases the knockback for the final hit, allowing to KO opponents easily. Version 9.0.0 has its hitboxes to increase in size.

Update History

3.1.0

Up smash's last hit has more base knockback (32 → 38).

9.0.0

Up smash has larger hitboxes (2.5u/2.5u/4u → 3.2u/3.2u/4.7u (clean loop), 4.6u → 5.1u (late loop), 5.5u → 6.5u (last hit)) that stretch farther horizontally (Z offset: -4u—7u → -6.5u—7u (loop), -4u—5u → -5u—5u (last hit)), with the last hit placed lower (Y offset: 24.5u—22.5u → 23u—21u). The looping hits also launch at different angles (120°/190°/140° → 105°/175°/140°), and their hitbox with the lowest priority deals more knockback (base: 0 → 30). Altogether, these changes allow the move to connect more reliably.

13.0.1

The multihits and penultimate hit deal more damage (1.3%/1.0% → 1.7%/1.4%).

Hitboxes

ID	Part	Rehit rate	Damage	SD	Angle type	BK	KS	FKV	Radius	Bone	Offset			H×	SDI×	T%	Sound	Hit bits	Hit part
Hit 1
0	1	0	1.0%	0	Standard	0	100	80	4.5	top	0.0	10.0	-5.0 to 5.0	1.0×	1.0×	0%	Slash	All	All
Multihits (early)
0	0	3	1.7%	0	Standard	0	100	18	3.2	top	0.0	18.0 to 16.0	-6.5 to 7.0	0.6×	1.0×	0%	Slash	All	All
1	0	3	1.7%	0	Standard	0	100	20	3.2	top	0.0	21.0 to 19.0	-6.5 to 7.0	0.6×	1.0×	0%	Slash	All	All
2	0	3	1.7%	0	Standard	30	100	50	4.7	top	0.0	18.0 to 16.0	-6.5 to 7.0	0.6×	1.0×	0%	Slash	All	All
Multihits (late)
0	1	3	1.4%	0	Standard	0	100	35	5.1	top	0.0	19.0 to 17.0	-6.5 to 7.0	1.0×	1.0×	0%	Slash	All	All
1	0	3	1.7%	0	Standard	0	100	20	3.2	top	0.0	21.0 to 19.0	-6.5 to 7.0	0.6×	1.0×	0%	Slash	All	All
2	0	3	1.7%	0	Standard	30	100	50	4.7	top	0.0	18.0 to 16.0	-6.5 to 7.0	0.6×	1.0×	0%	Slash	All	All
Final hit
0	0	0	6.0%	0	Standard	38	175	0	6.5	top	0.0	23.0 to 21.0	-5.0 to 5.0	1.8×	1.0×	0%	Slash	All	All