Super Smash Brothers and the King of Shadows
PROLOGUE
Previously, 35 heroes and villains were invited by a mysterious, cloaked man named T.C. Murky to Smash Castle, where they would participate in the first Super Smash Brothers Tournament. This grueling tournament included a total of 18 challenges, and the winner would be named Smash Champion. The first challenge was the Subspace Emissary, where the only rule the smashers were given was to find the lost mirror piece and return it to Murky. The smashers carry out the events of the Subspace Emissary, eventually defeating Tabuu and therefore revealing the mirror piece. The smashers then participated in the remaining 17 challenges and were awarded points for their victories.
After attending a trophy ceremony in which the winners of each of the challenges were awarded trophies for their success, Murky began the Championship Tournament by placing the smashers in the bracket according to their ranking from the previous challenges. The winner of this Tournament would be given the title of Smash Champion. However, the smashers soon learned that Murky had his own evil motives for organizing the tournament in the first place – by attaching the lost mirror piece to the Mirror of Evil, he could trap the smashers in the mirror one by one and turn them evil, thereby creating his own all-powerful army to take over the universe. As the smashers became eliminated in the Championship Tournament, they became trapped inside the mirror.
The smashers finished out the tournament, and Kirby defeated Link in the final match. However, Murky then attacked Kirby in a "bonus" match to send him into the mirror as well. Right before the match, Murky removed his cloak and revealed himself to be the real Tabuu, not the clone present at the end of the Subspace Emissary. Kirby defeated Tabuu, and the smashers were released from the Mirror of Evil.
Following the events of the Super Smash Tournament and the defeat of Tabuu, the story of the war against the King of Shadows takes place.