Okay I decided to do this because we don't have official frame data, while levitas supplied some it was in a method that wasn't quite 100% accurate, therefore I now managed to get equipment to record this accurately with proper interlacing tools.
Here is what I currently have, the complete version will come most likely on Saturday.
Jab#1
Start up: 2
Hits: 3
Hitlag:4-8
ENDS: 24
Shield lag: 6
Shield stun: 1
Jab #2
Start up: 2
Hits:3
Hitlag:4-7
ENDS: 23
Shield lag: 5
Shield stun: 1
Jab #3
Start up: 4
Hits: 5
Hitlag: 6-10
ENDS: 33
Shield Lag: 6
Shield Stun: 1
Up tilt
Start up:4
Hits:5
Hit lag: 6-11
ENDS: 36
Shield Lag: 7
Shield Stun: 3
D tilt
Start up:2
Hits:3
Hit lag: 4-5
Ends: 15
Shield lag: 6
Shield stun: 1
F tilt
Start up: 6
Hits:7
Hit lag: 8-16
Ends: 42
Shield Lag: 9
Shield Stun: 3
Aerials
N air Sweet spot
Start up: 4 frames
Hits: 5
Hitlag: 6-13
ENDs: 39
Landing lag: 19
Shield Lag: 9
Shield stun: 3
N air sour spot
Start up: 19
Hits: 20
Hit lag: 21-27
ENDS:---
Shield Lag: 7
Shield Stun: 3
B air sweet spot
Start up: 9
Hits: 10
Hitlag: 11-25
Ends: 49
Landing lag: 12
Shield Lag: 10
Shield stun: 5
B air sour spot
Start up:15
Hits: 16
Hit lag:17-24
Ends: ---
D air sweet spot
Start up: 19
Hits: 20
Hitlag:21-29
Ends: 67
Landing lag: 28
Shield lag: 9
Shield stun: 4
D air sour spot
Start up: 27
Hits:28
Hitlag:29-35
Ends: ---
U air
Start up:7
Hits: 8
Hitlag: 9-17
Ends: 51
Landing lag: 12
Shield Lag: 10
Shield stun: 4
F air
Start up: 7
Hits: 8, 14, 20, 26, 33
Hit lag: 9-11, 15-17, 21-23, 27-29, 34-36
Ends: 55
Landing lag: 12
Shield Lag: ???
Shield stun: ???
Smashes
Up smash charging hit
Start up: 8
Hits: 9
Hit lag: 10-14
Ends: ????
Shield Lag: 6
Shield Stun: 3
Up smash
Start up: 8
Hits: 9, 15
Hit lag: 10-14, 16-22
Ends: 65
Shield Lag: 8
Shield stun: 3
Down smash charging hit
Start up: 9
Hits: 10
Hit lag: 11-15
Ends: ????
Shield Lag: 6
Shield stun: 3
Down Smash
Start up: 9
Hits: 10, 17
Hit lag: 11-15, 18-24? (Hard to tell, there seems to be frames where Ness/ Yo Yo is completely still in his down smash, these are not hit lag ones though...)
ENDS: 75
Shield Lag: 9
Shield Stun: 4
Forward smash
Start up: 20
Hits: 21
Hit lag: 22-34
Ends: 67
Shield Lag: 14
Shield Stun: 8
Specials
PK Fire
Start up: 20
Hits: 21, 22, 33, 44, 53, 62, 74, 83, 94, 105
Ness ends: 56
PK thunder
Start up: 18
Hits: 19
Ends: 73
PSI Magnet
Start up: 9
Absorbs: 10
Hits: 31
Ends: 46
PK Flash Fully charged
Start up: 146
Hits: 147
Ends: 173
Quick Flash
Start up: 42
Hits: 43
Ends:69
Time between hit and end: 26
Frames opponent is stunned after end time: 4
Dash attack
Start up: 6
Hits: 7, 23, 38
Hit lag: 8-16, 24-31, 39-46
ENDS: 63
Miscellaneous
Grab
Hits: 6
Missed:35
Dashing grab:
Hits: 8
Missed:35
Pivot grab
Hits: 8
Missed:36
(All hits for grabs are on the earliest frame you can grab)
Ness holding opponent frame recovery: 29
Ness held by opponent grounded: 40
Pummel: 3 (Hits)
Jump: 5 frames until leaving the ground
Spot dodge
Ends: 25
Invincibility: 2-21
Flex Kick
Hits: 19 Back
Hits: 25 front
Ends: 53
Back roll
ENDS: 31
Invincibility: 4-21
Front Roll
ENDs: 31
Invincibility: 4-21
Air dodge
ENDS: 50
Invincibility: 4-30
Up taunt
Ends: 60
Side taunt
Ends: 65
Down taunt
Ends: 75
Here is what I currently have, the complete version will come most likely on Saturday.
Jab#1
Start up: 2
Hits: 3
Hitlag:4-8
ENDS: 24
Shield lag: 6
Shield stun: 1
Jab #2
Start up: 2
Hits:3
Hitlag:4-7
ENDS: 23
Shield lag: 5
Shield stun: 1
Jab #3
Start up: 4
Hits: 5
Hitlag: 6-10
ENDS: 33
Shield Lag: 6
Shield Stun: 1
Up tilt
Start up:4
Hits:5
Hit lag: 6-11
ENDS: 36
Shield Lag: 7
Shield Stun: 3
D tilt
Start up:2
Hits:3
Hit lag: 4-5
Ends: 15
Shield lag: 6
Shield stun: 1
F tilt
Start up: 6
Hits:7
Hit lag: 8-16
Ends: 42
Shield Lag: 9
Shield Stun: 3
Aerials
N air Sweet spot
Start up: 4 frames
Hits: 5
Hitlag: 6-13
ENDs: 39
Landing lag: 19
Shield Lag: 9
Shield stun: 3
N air sour spot
Start up: 19
Hits: 20
Hit lag: 21-27
ENDS:---
Shield Lag: 7
Shield Stun: 3
B air sweet spot
Start up: 9
Hits: 10
Hitlag: 11-25
Ends: 49
Landing lag: 12
Shield Lag: 10
Shield stun: 5
B air sour spot
Start up:15
Hits: 16
Hit lag:17-24
Ends: ---
D air sweet spot
Start up: 19
Hits: 20
Hitlag:21-29
Ends: 67
Landing lag: 28
Shield lag: 9
Shield stun: 4
D air sour spot
Start up: 27
Hits:28
Hitlag:29-35
Ends: ---
U air
Start up:7
Hits: 8
Hitlag: 9-17
Ends: 51
Landing lag: 12
Shield Lag: 10
Shield stun: 4
F air
Start up: 7
Hits: 8, 14, 20, 26, 33
Hit lag: 9-11, 15-17, 21-23, 27-29, 34-36
Ends: 55
Landing lag: 12
Shield Lag: ???
Shield stun: ???
Smashes
Up smash charging hit
Start up: 8
Hits: 9
Hit lag: 10-14
Ends: ????
Shield Lag: 6
Shield Stun: 3
Up smash
Start up: 8
Hits: 9, 15
Hit lag: 10-14, 16-22
Ends: 65
Shield Lag: 8
Shield stun: 3
Down smash charging hit
Start up: 9
Hits: 10
Hit lag: 11-15
Ends: ????
Shield Lag: 6
Shield stun: 3
Down Smash
Start up: 9
Hits: 10, 17
Hit lag: 11-15, 18-24? (Hard to tell, there seems to be frames where Ness/ Yo Yo is completely still in his down smash, these are not hit lag ones though...)
ENDS: 75
Shield Lag: 9
Shield Stun: 4
Forward smash
Start up: 20
Hits: 21
Hit lag: 22-34
Ends: 67
Shield Lag: 14
Shield Stun: 8
Specials
PK Fire
Start up: 20
Hits: 21, 22, 33, 44, 53, 62, 74, 83, 94, 105
Ness ends: 56
PK thunder
Start up: 18
Hits: 19
Ends: 73
PSI Magnet
Start up: 9
Absorbs: 10
Hits: 31
Ends: 46
PK Flash Fully charged
Start up: 146
Hits: 147
Ends: 173
Quick Flash
Start up: 42
Hits: 43
Ends:69
Time between hit and end: 26
Frames opponent is stunned after end time: 4
Dash attack
Start up: 6
Hits: 7, 23, 38
Hit lag: 8-16, 24-31, 39-46
ENDS: 63
Miscellaneous
Grab
Hits: 6
Missed:35
Dashing grab:
Hits: 8
Missed:35
Pivot grab
Hits: 8
Missed:36
(All hits for grabs are on the earliest frame you can grab)
Ness holding opponent frame recovery: 29
Ness held by opponent grounded: 40
Pummel: 3 (Hits)
Jump: 5 frames until leaving the ground
Spot dodge
Ends: 25
Invincibility: 2-21
Flex Kick
Hits: 19 Back
Hits: 25 front
Ends: 53
Back roll
ENDS: 31
Invincibility: 4-21
Front Roll
ENDs: 31
Invincibility: 4-21
Air dodge
ENDS: 50
Invincibility: 4-30
Up taunt
Ends: 60
Side taunt
Ends: 65
Down taunt
Ends: 75