The Tournament mode (Found in the Group section) is a mode that creates a formal, bracket tournament consisting of up to 32 players. Players choose their character and name before the tournament starts. Once begun, the players' characters' are unchangeable. The rules are the same for a standard brawl, including the same degree of customization. Each battle can consist of two, three, or four in any combination of players and CPUs. The tournament progresses with the bracket formula until the final winner is decided.
Related ThreadsHow to prepare for and deal with tournaments - last post by @ Dec 28, 2015
SSBM Character Tournament: Version 2.0 - last post by @ Feb 12, 2005
NeoSmash Watch Party: Shockwave 17 (Custom Moves Tournament) @ Dallas,Tx 2-13-15 - last post by @ Feb 13, 2015
SSBM Tournament 3 - last post by @ Sep 22, 2004
NINTENDO’S SUPER SMASH BROS 3DS TOURNAMENTS - last post by @ Sep 25, 2014