That's...just...bad.
Sorry to say, but it's true, this game sucks.
First, let's start by the characters.
Ok, there's Sonic, Mario, Pikachu, Link, Captain Falcon, that's OK.
Then there's Tails, Megaman, Knucles....and....BLADE?! WHO THE FUCK IS BLADE? I don't remember any blade on ANY Sonic game to date, unless he is... *gasp* A FANCHARACTER? ON MY SUPER SMASH BROS? OHSHITSON! Sorry, but the thing i most like about the SSB series it's the oportunity to play as my favorite gaming icons, and not playing as some lame Gary Stu made up by some Sonictard.
Then there's the gameplay, sorry, but the Physics suck, the characters walk like the ground was oiled up with lots of grease, because they slide like they live in some kind of iceland, and the animation sucks balls, made only by 6 sprites of animation, in a slow pace of a slug with a broken leg and disproportional to the character movement, while the character moves at speed of light, seriously, STAY AWAY FROM 12 FRAMES PER SEC!
The CPU is dumb as a rock, generally he throws himself outta the arena just to save yourself from the trouble of slamming the "p" button until he flies outta the arena.
Master Hand was made pathetically easy, im basic you stand under him slamming "p" and some other arrow, and when he throws an attack, run around like an idiot that just escaped from a rehab, that's infuriating, he was acctually challenging on any other SSB game.
In a few words, this can't hold a candle to the original games, i don't know why everyone is praising it so much, come on, it doesn't deserve a score that high, this game looks like a lame Multimedia Fusion game, a really lame one.
Obviously, everyone is going to bash this review all the way to hell, because it didn't said over and over "best game eva!!!11!1!!11!"