I feel character alts should be few and far between. For most it does not fit with the characters existing move set.
Example: Dry Bowser turning into Giga Bowser or Daisy summoning a bunch of peaches.
Or in some cases the alt needs to be more fleshed out;
Example: Blood Falcon would require a different voice, and different vehicle.
Sakurai has already adjusted voices for Robin's character, so it can be done, but what Sakurai hasn't done yet is texture tweeks or recolours for existing moves. Typically the alt fits in seamlessly with the move set.
Super Kong
Super Kong
Every single colour variation ever
Helmetless
Masked
Masked
Ninten (Fuctions like Alph for Olimar)
An alt slot dedicated to resemble your own Villager from your New Leaf save file. (Cross platform functionality)
An alt slot dedicated to resemble your own Avatar from your Awakening save file. (Cross platform functionality)
Shinies
Fleshed Out Alts
Blood Falcon
- Announcer calls out "Blood Falcon" when selected, and on the winning screen.
- Crowd will also cheer "Blood Falcon".
- Colour and texture adjustments made to certain moves to give him slightly more flavour.
- Colour and texture adjustments purely cosmetic and don't effect hit boxes, damage boxes or reach etc.
- Blood Hawk vehicle comes during the Final Smash.
- Different voice from Captain Falcon.
Dark Link
- Announcer calls out "Dark Link" when selected, and on the winning screen.
- Crowd will also cheer "Dark Link".
- Colour and texture adjustments made to certain moves to give him slightly more flavour. (Proper sword and shield colourations.)
- Colour and texture adjustments purely cosmetic and don't effect hit boxes, damage boxes or reach etc.
- Triforce Slash is recoloured to blacks instead of golds.
- Different voice from Link.
Daisy
- Announcer calls out "Daisy" when selected, and on the winning screen.
- Crowd will also cheer "Daisy".
- Colour and texture adjustments made to certain moves to give him slightly more flavour. (Maybe a different coloured Toad or Toadette)
- Colour and texture adjustments purely cosmetic and don't effect hit boxes, damage boxes or reach etc.
- The Final Smash has the peaches look like Flowers/ Daisies.
- Different voice from Peach.
Functionally these characters damage ratios, hit boxes, reach, stats, etc etc etc. Are all the same no changes made in this aspect. Purely cosmetic.
I woulda made the Blood Falcon, Dark Link, and Daisy alts unlockable or exclusive to the Limited Edition version of the game.