MK's up air is still fast but has a LOT of cool down. So you can't do rapid up airs anymore like you could in Brawl. I'd say in the time you could do 3 up airs in Brawl, you can only do 2 in Smash 4.
Down Smash is nerfed considerably. Hitting from the back or front sent my opponent flying at 100%+, not even close to killing. Most of my killing has come from down air gimps, f smashes, and the second hit of his up b.
Captain Falcon's knee has SO MUCH LANDING LAG. I've yet to sweet spot it. However, his back air is very strong. I've been killing in the mid 80%'s with it.
Down Smash is nerfed considerably. Hitting from the back or front sent my opponent flying at 100%+, not even close to killing. Most of my killing has come from down air gimps, f smashes, and the second hit of his up b.
Captain Falcon's knee has SO MUCH LANDING LAG. I've yet to sweet spot it. However, his back air is very strong. I've been killing in the mid 80%'s with it.