A fun all around game.
First of all, the first thing you should try is the Classic solo Mode where you Choose tyour fighter, then choose how many lives you want, then choose what level of difficulty and then fight other characters, from Teams (which are easy to KO) to Metal Characters (which are heavier and hard to KO) then there are also two Break the Targets rounds, and a round where you have to face three characters,then this enemy that is non playable called The Master Hand, and when you beat The Master Hand, you get that characters trophy.
If that is not what you like to start with you can go into the Multi-Player Mode and, fight with your friends.
There is also the Nintendo Wi-Fi Connection mode, Where you give out your number that people have to put into there Wii, so you can fight them.
There is also alot of extras, like Stats, and this one game called Coin Launcher, where you can win alot of Trophies and Stickers.
There is also this other Solo Mode, that is like a Story mode where you Unlock alot of Characters.
There is also a mode called Event Mode, where your trying to complete Missions is really all it is.