Well, i'd say for the run attack, he shouldn't back up first. It should be more like yoshi's. And I believe it was Blase that said you were gonna update the back-A air.
I also think the black shield should reflect projectile attacks/items. At least for a small window of time.
The side-B just needs a better pose while he's going forward. It is a pretty good move though.
the neutral B is perfect, but the gfx get screwed up a lot with other PSAs. I don't know if that's fixable though, lol.
his Up-A ground is good. maybe a revamped animation, but if not, it's a good attack.
down-A ground is extremely harc to hit with, and is a little too much like Knuckles'.
I like the side-A ground.
Up-Smash: the person you're hitting can get out of it too easily, but nice move overall.
running (turning around only) He really doesn't move much when he turns around, although it does kinda fit the "robot" standard.
FS: enemies get out of it too easily. I'm not sure why, but I think adding more hit-stun may fix it. Similar to Shadowkong's, i guess. would it be possible for the lightning from above to give damage?
sorry, just some constructive criticism.