NibbyNibbyNub
Smash Rookie
This can be pretty useful info for certain matchups as Wii Fit has the shortest duck in the game. This list also does NOT include the idol crouch animation when (s)he does pushups, as that heightens her/his hurtbox, but I doubt any of us would be crouching for more than a few seconds in a competitive match.
Mario - Neutral-B, Upsmash (reverse upsmash hits), Ftilt (upper angle)
Luigi - Neutral-B, Side-B (medium range uncharged, full charged), Fsmash (upward angle)
Peach - Uptilt, Both jabs, Upsmash, Float nair, Grab, Dash grab, Side-B (close ranged), Down-B (thrown at close range), Float dair (waist level when standing)
Bowser - Everything connects
Yoshi - Uptilt, Ftilt, Down-B (Stars from aftershock only), Upsmash (very close range, basically inside), Up-B (close range)
Rosalina - Uptilt, Upsmash, Fsmash, All hits of jab, Dash grab,
Luma - Neutral-B, Uptilt
Bowser Jr. - Neutral-B (fully charged, no charge medium), Uptilt
Wario - Upsmash
Donkey Kong - Ftilt, Uptilt (only when facing forward), Upsmash
Diddy Kong - Uptilt, Upsmash, Neutral-B (close range no charge, medium range medium charge), Side-B (close range, medium range command grab version), Down-B (thrown at close range)
Game & Watch - Uptilt, Upsmash, Side-B, Neutral-B (most at close range)
Little Mac - Fsmash (middle and upper angles), Ftilt, Uptilt (when facing foward), Neural-B, Side-B (only hits when close to ground), Grab, Dash grab, Jab (first hit only)
Link - Side-B (all angles except a jump into a downward throw, end of hurtbox on way out), Uptilt (when facing forward), Down-B (thrown at close range), Neutral-B (full charge, medium charge medium range, no charge close range), Up-B (facing other way)
Zelda - Ftilt, Uptilt, Upsmash, Grab, Dash grab, Jab, Dash attack
Sheik - Jab (only first two hits), Fsmash, Neutral-B
Ganondorf - Down-B, Ftilt, Fsmash (upward and middle angle only), Downsmash, Neutral-B
Toon Link - Neutral-B (full charge, medium charge medium range, no charge close range), Down-B (thrown at close range)
Samus - Neutral-B (only mostly and fully charged hits), Side-B (homing rockets hit), Fsmash (middle and upper angles), Ftilt (middle and upward angles), Upsmash
Zero Suit Samus - Dash grab, Fsmash, Up-B, Side-B, Neutral-B, Jab (all hits), Utilt, Ftilt (all three angles), Dash attack
Pit - Neutral-B (unless angled correctly), Upsmash
Palutena - Utilt, Fsmash (windbox still pushes), Dash grab, Dash attack
Marth - Jab (both hits), Utilt, Grab, Dash grab, Neutral-B
Ike - Ftilt (middle and upper angles), Jab (first hit only), Grab, Dash grab
Robin - Neutral-B (Thunder, Elthunder, Arcthunder, Thoron all miss), Ftilt, Fsmash, Ftilt, Uptilt, Upsmash
Duck Hunt - Upsmash, Down-B (except for the short cowboy), Side-B (close range), Neutral-B (completely dependant on player), Ftilt (middle and upper angles), Utilt
Kirby - Ftilt (upper angle), Utilt (facing forwards)
King Dedede - Utilt, Upsmash (facing forwards)
Meta Knight - Utilt, Upsmash, Dash grab
Fox - Neutral-B, Utilt (facing forward), Ftilt (middle and upper angles), Dash grab, Jab (first hit only)
Falco - Neutral-B, Ftilt (middle and upper angles), Down-B, Upsmash, Dash grab
Pikachu - Side-B (no charge close range, full charge, medium charge long range). Ftilt (upper angle)
Charizard - Utilt, Upsmash (facing backwards)
Lucario - Utilt, Upsmash, Grab, Dash grab
Jigglypuff - Down-B, Utilt (facing forwards), Upsmash (facing backwards)
Greninja - Utilt, Ftilt (upper angle), Upsmash
ROB - Neutral-B (depending on angle, both low and full charge miss), Ftilt (middle and upper angles), Fsmash (middle and upper angles), Utilt, Side-B (no leaning), Grab, Dash Grab
Ness - Utilt, Up-B (depending on trajectory)
Captain Falcon - Ftilt (middle and upper angles), Neutral-B, Dash grab, Grab, Dash Attack, Jab (every hit, gentleman included)
Villager - Utilt
Olimar - Utilt
Wii Fit Trainer - Neutral-B (full charge), Ftilt, Jab (first two, backwards first hit hits), Utilt, Upsmash, Fsmash, Side-B (depending on trajectory), Grab, Dash grab, Up-B
Shulk - Utilt (facing backwards), Fsmash (upper angle), Ftilt, Grab, Dash grab, Jab (first two hits), Dash attack
Dr. Mario - Neutral-B, Upsmash (facing forwards), Fsmash (middle and upper angles), Ftilt (upper angle)
Dark Pit - Neutral-B (depending on trajectory), Upsmash
Lucina - Jab (both hits), Utilt, Grab, Dash grab, Neutral-B
Pac-Man - Neutral-B (Melon only), Ftilt (upper angle), Utilt, Upsmash, Up-B
Mega Man - Fsmash (uncharged), Jab, Ftilt, Side-B, Neutral-B (depending on trajectory)
Sonic - Everything connects
Mewtwo - Neutral-B (due to movement, can hit at any time/charge, and be ducked at any time/charge), Down-B, Upsmash, Dash attack, Dash grab, Grab, Fsmash
Lucas - Up-B (depending on trajectory), Ftilt (upper angle)
Roy - Upsmash, Utilt, Grab, Dash grab
Ryu - Side-B (special input as well), Neutral-B (special input as well), Up-B (special input as well), Down-B, Utilt (soft and hard), Jab (soft and hard), Ftilt (soft only), Fsmash, Grab, Dash grab, Dash attack
If I missed any let me know! (I plan on adding Mii fighters on a later date.
Mario - Neutral-B, Upsmash (reverse upsmash hits), Ftilt (upper angle)
Luigi - Neutral-B, Side-B (medium range uncharged, full charged), Fsmash (upward angle)
Peach - Uptilt, Both jabs, Upsmash, Float nair, Grab, Dash grab, Side-B (close ranged), Down-B (thrown at close range), Float dair (waist level when standing)
Bowser - Everything connects
Yoshi - Uptilt, Ftilt, Down-B (Stars from aftershock only), Upsmash (very close range, basically inside), Up-B (close range)
Rosalina - Uptilt, Upsmash, Fsmash, All hits of jab, Dash grab,
Luma - Neutral-B, Uptilt
Bowser Jr. - Neutral-B (fully charged, no charge medium), Uptilt
Wario - Upsmash
Donkey Kong - Ftilt, Uptilt (only when facing forward), Upsmash
Diddy Kong - Uptilt, Upsmash, Neutral-B (close range no charge, medium range medium charge), Side-B (close range, medium range command grab version), Down-B (thrown at close range)
Game & Watch - Uptilt, Upsmash, Side-B, Neutral-B (most at close range)
Little Mac - Fsmash (middle and upper angles), Ftilt, Uptilt (when facing foward), Neural-B, Side-B (only hits when close to ground), Grab, Dash grab, Jab (first hit only)
Link - Side-B (all angles except a jump into a downward throw, end of hurtbox on way out), Uptilt (when facing forward), Down-B (thrown at close range), Neutral-B (full charge, medium charge medium range, no charge close range), Up-B (facing other way)
Zelda - Ftilt, Uptilt, Upsmash, Grab, Dash grab, Jab, Dash attack
Sheik - Jab (only first two hits), Fsmash, Neutral-B
Ganondorf - Down-B, Ftilt, Fsmash (upward and middle angle only), Downsmash, Neutral-B
Toon Link - Neutral-B (full charge, medium charge medium range, no charge close range), Down-B (thrown at close range)
Samus - Neutral-B (only mostly and fully charged hits), Side-B (homing rockets hit), Fsmash (middle and upper angles), Ftilt (middle and upward angles), Upsmash
Zero Suit Samus - Dash grab, Fsmash, Up-B, Side-B, Neutral-B, Jab (all hits), Utilt, Ftilt (all three angles), Dash attack
Pit - Neutral-B (unless angled correctly), Upsmash
Palutena - Utilt, Fsmash (windbox still pushes), Dash grab, Dash attack
Marth - Jab (both hits), Utilt, Grab, Dash grab, Neutral-B
Ike - Ftilt (middle and upper angles), Jab (first hit only), Grab, Dash grab
Robin - Neutral-B (Thunder, Elthunder, Arcthunder, Thoron all miss), Ftilt, Fsmash, Ftilt, Uptilt, Upsmash
Duck Hunt - Upsmash, Down-B (except for the short cowboy), Side-B (close range), Neutral-B (completely dependant on player), Ftilt (middle and upper angles), Utilt
Kirby - Ftilt (upper angle), Utilt (facing forwards)
King Dedede - Utilt, Upsmash (facing forwards)
Meta Knight - Utilt, Upsmash, Dash grab
Fox - Neutral-B, Utilt (facing forward), Ftilt (middle and upper angles), Dash grab, Jab (first hit only)
Falco - Neutral-B, Ftilt (middle and upper angles), Down-B, Upsmash, Dash grab
Pikachu - Side-B (no charge close range, full charge, medium charge long range). Ftilt (upper angle)
Charizard - Utilt, Upsmash (facing backwards)
Lucario - Utilt, Upsmash, Grab, Dash grab
Jigglypuff - Down-B, Utilt (facing forwards), Upsmash (facing backwards)
Greninja - Utilt, Ftilt (upper angle), Upsmash
ROB - Neutral-B (depending on angle, both low and full charge miss), Ftilt (middle and upper angles), Fsmash (middle and upper angles), Utilt, Side-B (no leaning), Grab, Dash Grab
Ness - Utilt, Up-B (depending on trajectory)
Captain Falcon - Ftilt (middle and upper angles), Neutral-B, Dash grab, Grab, Dash Attack, Jab (every hit, gentleman included)
Villager - Utilt
Olimar - Utilt
Wii Fit Trainer - Neutral-B (full charge), Ftilt, Jab (first two, backwards first hit hits), Utilt, Upsmash, Fsmash, Side-B (depending on trajectory), Grab, Dash grab, Up-B
Shulk - Utilt (facing backwards), Fsmash (upper angle), Ftilt, Grab, Dash grab, Jab (first two hits), Dash attack
Dr. Mario - Neutral-B, Upsmash (facing forwards), Fsmash (middle and upper angles), Ftilt (upper angle)
Dark Pit - Neutral-B (depending on trajectory), Upsmash
Lucina - Jab (both hits), Utilt, Grab, Dash grab, Neutral-B
Pac-Man - Neutral-B (Melon only), Ftilt (upper angle), Utilt, Upsmash, Up-B
Mega Man - Fsmash (uncharged), Jab, Ftilt, Side-B, Neutral-B (depending on trajectory)
Sonic - Everything connects
Mewtwo - Neutral-B (due to movement, can hit at any time/charge, and be ducked at any time/charge), Down-B, Upsmash, Dash attack, Dash grab, Grab, Fsmash
Lucas - Up-B (depending on trajectory), Ftilt (upper angle)
Roy - Upsmash, Utilt, Grab, Dash grab
Ryu - Side-B (special input as well), Neutral-B (special input as well), Up-B (special input as well), Down-B, Utilt (soft and hard), Jab (soft and hard), Ftilt (soft only), Fsmash, Grab, Dash grab, Dash attack
If I missed any let me know! (I plan on adding Mii fighters on a later date.