As far as balance changes,
I'd like to see Kid get a grounded version of his command grab, same range/speed, just throws it straight out. It will snatch at any range as well, you don't have to catch someone at the tip range or anything. Same ability to combo with assists/meter/etc. Ex should have armor.
I feel like his 5M should start a little faster. Not much, 2-3f.
More range on 2L..make it's semi-stretchy.
Forward facing hitbox on 2H
Air versions of command grabs, ala Piccolo.
Candy Beam to heal more, or be given a MB version that does increased damage/drain.
Slightly faster fall speed after all versions of his Ball. Mb grounded ball should hit OH.
2M should really just reach full fucking screen, too easy to avoid IMO.
His air lv1 should be changed slightly to act similar to Bluegeta's command grabs, in that, when it lands, he carries the opponent to the ground and smashes them, causing a HKD with slight frame advantage. I spent a bar, I deserve my Oki.
Extend hit regions of his lv3 to encompass his head and hind shoulder. He's so short he's easier to get across with IADs, making him more susceptible to crossups. An invincible, anti-airing lv3 that will punish crossup attempts is only fair.
MB version of his crazy ball lockdown special, same properties, but faster startup, allowing it to be safely canceled from some of his normals. The current version is entirely useless due to it's slow startup. Ypu have call an assist to even attempt to use the damn thing.
I feel like, with those changes, Kid will finally be a viable choice. I mean, yeah he has his mix, but it's not like he can ever land a hit to start the mix, having sush terrible screen presence anywhere except point-blank with assist back-up. He's a small character which already gives him a disadvantage, being so easy to crossup. His standard damage is lacking as well, and these additional options will help to mitigate this considerably by allowing him more opportunities to put hands on his opponent.
Black needs a low hitting 2L as well, but I'd settle for a standing low hitting command normal added, something like Cell's 6H.
21 suggestions Inc.
Cough.
*Ducks*