Air friction

Air friction is a measure of how long it takes for a character to stop moving from a sideways force when in midair. It is the aerial equivalent to traction, which only applies when grounded.

Air friction only applies when the player is not holding the Control Stick in a horizontal direction (or the input is being ignored, such as when in hitstun). If the player is attempting to slow down, air acceleration applies instead, and air friction is ignored. This allows characters to be designed with several properties:

• High acceleration and high friction means a character will change velocity quickly in all situations.
• High acceleration and low friction means a character will respond quickly to the player's controls, but be very slow to decelerate if the player lets go.
• Low acceleration and high friction means a character will respond slowly to the player's controls, but be very quick to decelerate if the player lets go. This would lead to an unintuitive situation where a player trying to slow down will take longer than simply allowing friction to take over.
• Low acceleration and low friction means a character will change velocity slowly in all situations.

It is circumstantial as to whether high or low air friction is good or bad. Low air friction means a character will not slow down as much if the player attempts to use a neutral aerial when moving, and will cause them to travel a bit further during combos. But on the other hand, high air friction helps resist being KO'd to a degree, and it may be beneficial in some cases to slow to a stop quicker without providing directional input.

Air friction values

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Super Smash Bros.

This article or section may require additional technical data. The editor who added this tag elaborates: only JPN/NTSC values here; check for potential PAL/AUS changes You can discuss this issue on the talk page or edit this page to improve it.

Rank	Character	Air friction
1	Jigglypuff	1.0
2	Kirby	0.5
3	Pikachu	0.45
4-5	Ness	0.4
4-5	Yoshi	0.4
6-8	Donkey Kong	0.3
6-8	Fox	0.3
6-8	Samus	0.3
9-10	Captain Falcon	0.2
9-10	Mario	0.2
11	Luigi	0.15
12	Link	0.0

Super Smash Bros. Melee

Rank	Character	Air friction
1	Jigglypuff	0.05
2	Sheik	0.04
3	Ness	0.03
4-9	Donkey Kong	0.02
4-9	Falco	0.02
4-9	Fox	0.02
4-9	Ganondorf	0.02
4-9	Ice Climbers	0.02
4-9	Kirby	0.02
n/a	Male Wire Frame	0.02
10-13	Dr. Mario	0.016
10-13	Mario	0.016
10-13	Mewtwo	0.016
10-13	Mr. Game & Watch	0.016
14	Yoshi	0.013
15-20	Bowser	0.01
n/a	Giga Bowser	0.01
15-20	Captain Falcon	0.01
15-20	Luigi	0.01
15-20	Pichu	0.01
15-20	Pikachu	0.01
15-20	Samus	0.01
21-26	Link	0.005
21-26	Marth	0.005
21-26	Peach	0.005
21-26	Roy	0.005
21-26	Young Link	0.005
21-26	Zelda	0.005
n/a	Female Wire Frame	0.005
n/a	Sandbag	0.001

Super Smash Bros. Brawl

Rank	Character	Air friction
1	Wario	0.08
n/a	Wario-Man	0.08
2	Jigglypuff	0.0375
3	Ness	0.0225
4	Sheik	0.021
5	Squirtle	0.018
6-12	Donkey Kong	0.015
6-12	Fox	0.015
6-12	Ganondorf	0.015
6-12	Ice Climbers	0.015
6-12	Kirby	0.015
6-12	Meta Knight	0.015
6-12	Olimar	0.015
13-14	Ivysaur	0.014
13-14	Lucas	0.014
15	Falco	0.013
16	Mr. Game & Watch	0.012
17-21	Diddy Kong	0.01
17-21	Mario	0.01
17-21	Peach	0.01
17-21	Sonic	0.01
17-21	Toon Link	0.01
n/a	Fighting Alloy Team	0.01
22	Yoshi	0.00975
23	Ike	0.009
24-26	Charizard	0.008
24-26	Pit	0.008
24-26	Zero Suit Samus	0.008
27-31	Bowser	0.0075
n/a	Giga Bowser	0.0075
27-31	Captain Falcon	0.0075
27-31	Luigi	0.0075
27-31	Pikachu	0.0075
27-31	Samus	0.0075
32-33	King Dedede	0.006
32-33	Zelda	0.006
34-35	Lucario	0.005
34-35	Snake	0.005
36-37	R.O.B.	0.004
36-37	Wolf	0.004
38	Link	0.0038
39	Marth	0.00375

Super Smash Bros. 4

Rank	Character	Air friction
n/a	Wario-Man	0.08
1	Mega Man	0.05
2	Wario	0.04
3	Jigglypuff	0.0375
4	Ness	0.0225
5	Mewtwo	0.016
6-20	Bowser Jr.	0.015
6-20	Donkey Kong	0.015
6-20	Dr. Mario	0.015
6-20	Duck Hunt	0.015
6-20	Fox	0.015
6-20	Ganondorf	0.015
n/a	Giga Mac	0.015
6-20	Greninja	0.015
6-20	Kirby	0.015
6-20	Mario	0.015
6-20	Mii Brawler	0.015
6-20	Olimar	0.015
6-20	Pac-Man	0.015
6-20	R.O.B.	0.015
6-20	Ryu*	0.015
6-20	Sheik	0.015
21	Lucas	0.014
22-23	Meta Knight	0.012
22-23	Mr. Game & Watch	0.012
24-32	Falco	0.01
24-32	Mii Gunner	0.01
24-32	Palutena	0.01
24-32	Peach	0.01
24-32	Rosalina	0.01
24-32	Sonic	0.01
24-32	Toon Link	0.01
24-32	Villager	0.01
24-32	Wii Fit Trainer	0.01
33-36	Cloud	0.009
33-36	Corrin	0.009
33-36	Ike	0.009
33-36	Shulk	0.009
37-42	Bayonetta	0.008
37-42	Charizard	0.008
37-42	Dark Pit	0.008
37-42	Diddy Kong	0.008
n/a	Giga Bowser	0.008
37-42	Pit	0.008
37-42	Zero Suit Samus	0.008
43-48	Bowser	0.0075
43-48	Captain Falcon	0.0075
43-48	Little Mac	0.0075
43-48	Luigi	0.0075
43-48	Pikachu	0.0075
43-48	Samus	0.0075
49	Robin	0.007
50-51	King Dedede	0.006
50-51	Zelda	0.006
52-54	Lucario	0.005
n/a	Mega Lucario	0.005
52-54	Roy	0.005
52-54	Yoshi	0.005
55-56	Link	0.0038
55-56	Mii Swordfighter	0.0038
57-58	Lucina	0.00375
57-58	Marth	0.00375

* Ryu is a special case. In most circumstances, his air friction is a standard 0.015. However, when he jumps, his air friction is 0, meaning he will not slow down at all unless the player attempts to decelerate.