Idea: Boss Rival Battles

[CrossoverMan]

So I had an idea that just before the battle with Master Hand in arcade mode you could fight a non-playable boss or enemy character from the the same series as the character you're playing as. Each boss character will have super armour, meaning that they will take a lot of effort to knock off the stage, and will all have unique movesets. This could explain Yellow Devil's appearance. Maybe when you beat them, they become assist trophies.

Mega Man - Yellow Devil
Mario - Petey Pirahna
Luigi - Boolosus
Peach - False Bowser
Wii Fit Trainer - Giant Wii Fit Board
Link - Koloktos
Toon Link - Toon Ganondorf
Olimar - Bulborb
Samus - Ridley
Donkey Kong - Cactus KIng
Sonic - King Arthur
Kirby - Magolor
Pit - Dark Lord Gaol

 

[Burning Boom]

I like the idea, although the nostalgic part of me would miss the Metals being your pre-boss-boss. Also, Luigi should have King Boo, not Boolosus, who is just a bunch of boos, Olimar should have Emporor Bulbax, Pit's needs to be Hades (with more hilarious dialogue and banter, and 4th wall destruction), and finally, the Wii Fit Trainer's should be just a big bag of Doritos or something.