I know a few RPGs have scenarios like this, but...
Tabuu has been defeated. Peace has been returned to Trophy World. The Midair Stadium has been upgraded. Yet all is not as it seems...
Tabuu is not dead. The Subspace entity has absorbed the power of Crazy Hand to transform him into Tabuu 2.0. Master Hand finds his brother/enemy/thingie dead, slowly transforming into a trophy. Master Hand rushes back to Trophy World to tell the smashers...
Master Hand smashes into Kirby. The impact quarters Kirby into 4 parts, each corresponding to Smash Kirby's powers.
3 characters who lived in the shadows during Subspace's previous siege have come out, ready to fight. Fight them or fight as them.
...That's it. Here are the stages, and which fighters appear. I have a call system. When it is your stage, I will VM you, with this:
Your call for getting to Tabuu is here!
When a player is done, this message will appear:
[Smasher's name] DISMISSED!
(M)=good (Mario's symbol) (W)=bad (Wario's symbol) =NPC Foe Debut only
Dark Meta Knight (W)
Toon Link (M)
Kyogre (boss, unplayable)
Big Primid(boss, unplayable)
Giant Shadow Diddy Kong(boss, unplayable)
Unown Troop x16(boss, unplayable)
Dark Meta Knight(W)
Tabuu 2.0(only playable boss)
Characters trophyize when they hit 200%
Percentage from bosses will be calcuated from SmashWiki.
Player % is determined by battle.
Zelda and Peach aren't playable.
I call Sonic and Toon Link! You can get more than one character. Oh yeah...Meta Kinght and Bowser get responsiblity of thier other forms.
These people are taken:
(Dark) Meta Knight