I thought sonic looked like crap from what I saw. Did they find out something good about him?
His forward B move is jump cancelable into another forward B which is also jump cancelable. And he's ridiculously fast.
What the hell are these cancels!?
I only played Smash with my friends casually in parties ;_;
L cancels are when you hit L or R just before hitting the ground while doing a move. It cuts down the recovery time on landing. Like, for instance, Link's down A when he lands on the ground it takes about a second for him to pull his sword out. If you hit L when you land, he picks it up immediately. Its absolutely essential that you never miss a single L cancel if you play competitively.
Wavedashing is jumping and then immediately midairdodging toward the ground. If you did it right, you'll do an instantaneous slide backward or forward without going into run animation, meaning you can do anything you would be able to do if you were just standing. For some characters you absolutely need to know how to do it, Ganondorf wasn't one of them.
All in all, the game is fun, but its got retarded tiers.