Bosses

Bosses are special characters that you fight in the Story Mode. They also appear in Classic mode and Smash Run.

List of Bosses
Master/Crazy Hand (Super Smash Bros) (also playable)

Tabuu (Super Smash Bros) (exclusive to Classic Mode)

Alduin (Skyrim)

King Ghidorah (Godzilla)

King Jellyfish (SpongeBob)

Kraid (Metroid)

Dracula (Castlevania)

Egg Dragoon (Sonic)

Zekrom (Pokemon)

Gargantuar (Plants Vs. Zombies)

Merasmus (Team Fortress 2)

Shao Kahn (Mortal Kombat)

Dino Piranha (Mario)

Duon (Super Smash Bros.)

Reshiram (Pokemon)

Kyruem (Pokemon)

Knucklotec (Mario)

Giga Bowser (Super Smash Bros, technically Mario) (also Bowser's final smash)

Beast Ganon (Zelda)

Mephiles (Sonic) (Exclusive to Classic Mode)

Infinite (Sonic) (Exclusive to Classic Mode)

Whispy Woods (Kirby)

Necrosan (Primal Rage)

Exor (Mario)

Kamek (Mario)

Galleom (Super Smash Bros)

Galacta Knight (Kirby)

Morpho Knight (Kirby)

M. Bison (Street Fighter)

Dark Bowser (Mario)

Dr. Wily (Megaman)

Rathalos (Monster Hunter)

Dark Emperor (Find Mii)

Giant R.O.B. (Super Smash Bros, technically Gyromite)

Viruses (Dr. Mario) (exclusive to classic mode)