Bowser

How Bowser joined the Tourney
Bowser was introduced in the seminal Super Mario Bros. for NES, with most of his traditional character traits introduced along with it: his storyline role as a comically monstrous villain who always goes out of his way to kidnap the Mushroom Kingdom princess, Peach Toadstool, his gameplay role as a boss enemy for Mario to defeat, his fire-breathing abilities, his immeasurable army of henchmen such as mushroom-headed Goombas and turtle-like Koopa Troopas, and so on. Super Mario Bros. holds the Guinness World Record for best-selling video game, at 40 million copies, essentially guaranteeing worldwide fame for all characters who appeared in the game, Bowser included. He has appeared in some form in almost every Mario game to date, along with more members of his "family", mainly his eight children, Bowser Jr. and the seven "Koopalings".

Fire Breath (Neutral)
Bowser breathes fire.

Flying Slam (Side)
If this move connects, Bowser will perform a flying suplex.

Whirling Fortress (Up)
Known for the defensive and maneuvering attributes it adds to Bowser's game, it fills several holes in Bowser's otherwise slow metagame, being widely regarded as the only reason Bowser is playable competitively. It is similar in execution to Donkey Kong's Spinning Kong, being a move that causes the user to quickly spin around as a mostly-horizontal recovery. Several unique properties make it highly beneficial to play:

Bowser Bomb (Down)
If Bowser is in midair when using this move, he slams to the ground with a butt-stomp. If he's on the ground doing this, he will leap forward diagonally before performing the butt-stomp.

Koopa Clown Car (Hyper Smash)
Bowser gets into his Clown Car, flies around on the screen, and throws Mechakoopas at his opponents for 12 seconds.

Giga Bowser (Final Smash)
This causes Bowser to turn into Giga Bowser from Super Smash Bros. Melee, gaining immense strength. While in this form, he's invulnerable to knockback, but can still receive hitstun and damage, which may leave Bowser severely weakened and open to KOs after the Final Smash. The transformation lasts about 12 seconds. He gains no new abilities while as Giga Bowser, though his existing abilities become more powerful, and most gain elemental side effects.

Victory Animations

 * 1) Bowser steps forward, builds up a little and roars.
 * 2) Bowser spins around in his shell and comes out laughing.
 * 3) Bowser takes two steps forward while swiping with his claws twice.

Trivia

 * Bowser shares his English voice actor with Meta Knight.
 * Sakura is Bowser's Super Smash Bros. Tourney rival due to the fact that he captured Ryu.