Incredible! The best game on the Nintendo Gamecube.
Not only is this game simply a multiplayer game it has an amazing one player mode. There is the classic version where you simply fight each character in a basic fight. Then there is the best part of 1 player, the Adventure mode. It is so cool watching your favorite nintendo character travel through the other levels of the other characters. You travel through Mushroom Kingdom, Hyrule, A F-Zero race track and so many others. Then there is a challenging mode called All Star mode. In this mode you fight all the characters with limited recovery items and you also have to fight more than one at a time.
Then there is of course the classic multiplayer mode. There are 25 different maps to fight at. There are about 40 different items that make the fights more interesting. And not to mention all the different modes you can fight in. Once you play a couple of matches you will be addicted. You can always add items, try new areas, and the different modes.
On top of all of this you can collect trophies. Trophies can be collected by doing certain things in the game. (Beating the 1 player modes, playing multiplayer a bunch of times, etc.) Its fun to see all of the trophies. There are almost 300 total. They are all from the truly classic games through nintendo's history.
So much to do in this game it is unreal. It took me over 100 hours to get every single trophy, beat the 1 player modes with everyone, etc. It is still so much fun to play multiplayer. It never gets old. It is without a doubt the best game that I have played for awhile. My 2nd favorite game of all time. (Zelda: Ocarina of TIme is the true best).