Several bosses appear in the Super Smash Bros series games some of which come from the games of the characters playable in the game. Here is a list of all the bosses and there origins (note: SSB is Super Smash Bros for the Nintendo 64, SSBM is Super Smash Bros Melee for Gamecube, and SSBB is Super Smash Bros Brawl for Wii)
Master Hand (SSB)
Crazy Hand (SSBM)
Petey Pirahna (Super Mario Sunshine)
Rayquaza (Pokemon Ruby & Sapphire)
Porky (Earthbound)
Ridley (Metroid)
Meta Ridley (Metroid Prime)
Galleom (SSBB)
Duon (SSBB)
Tabuu (SSBB)
you dont
In Boss Battles, there are 10 bosses.
You can't play as the bosses.
None of them are playable characters.
None of the bosses including tabuu can be played.
Super Smash Bros., Super Smash Bros. Melee, Super Smash Bros. Brawl, Super Smash Bros. for Nintendo 3DS/ Super Smash Bros. for Wii U, Super Smash Bros. Ultimate.
All bosses including taboo are unplayable.
None of the bosses including tabuu can be played.
Super Smash Bros., Super Smash Bros. Melee, Super Smash Bros. Brawl, Super Smash Bros. for Nintendo 3DS/Super Smash Bros. for Wii U, and Super Smash Bros. Ultimate.
No he's a boss and bosses don't become characters
Yes you can! You can be tabuu and crazy hand(not master hand)
The "sequel" to Super Smash Bros. Brawl, in a way, is Super Smash Bros. for Nintendo 3DS/Super Smash Bros. for Wii U.