HOLY CRAP, THE LEAK IS REAL. GET ROWDY!
Sorry, sorry... I'm freaking out.

As of right now... 8/25/14 around 11:00AM EST.
There are 5 videos on YouTube that are leaks of SSB4 for 3DS.
Yes, this is the same guy and/or source from the last SSB4 leak.
BTW, here's my blog for the last leak.
HERE ARE THE LINKS TO THE VIDEOS:
EDIT: The videos were taken down by Nintendo of America. Holy crap. THIS IS REAL.

I recommend you download those videos if and/or when they get taken down by Nintendo.
I have nothing else to say about this other than: IN YOUR FACE WAFFLE KING! (lol jk ily jk ihy lolwut)
I understand people getting suspicious about the leaked pictures, but not these videos. Right, it could be hacked SSBB... Yeah, someone of these characters seem weird for Smash 4... but who knows? On September 13, we will get our roster. (Because that's when the game comes out in Japan for 3DS.) Then we will get our confirmation that the leaks are real or fake. (I hope Roy is DLC. Well, if there is DLC.)

I will edit this later if needed.

EDIT: A wild menu picture appeared by the same leaker.

"PLEASE, TAKE A LOOK" -Iwata

EDIT: More pictures. Holy crap.

Some of the trophy pics are slightly NSFW because of the angles the camera is at so... I'm putting the link in a spoiler.

EDIT: Oh my...

EDIT: SHULK WAS CONFIRMED ON 8/29

GET ON THE SMASH 4 HYPE TRAIN!