a nice boss battle would be against Ganon, first phase being the playable Ganondorf and then, once defeated, he would transform into his beastly form, becoming a boss like Master Hand using a lifebar and no flinching.
personally, I'd like having Ganondorf as the main antagonist of the story, because it fits him well.
other enemies could include:
[COLLAPSE="Enemies and bosses"]
From the Mario series:
Bowser's Koopa Troop
Fawful from Mario & Luigi
The X-Nauts from Paper Mario
Add Count Bleck and Dimentio as well.
From DK series:
K. Rool's Kremlings
The Tikis from DKC Returns
From Zelda:
Ganon's minions and include other major Zelda villains such as Majora, Vaati, Zant and Ghirahim.
From Metroid:
Space Pirates, with bosses being the likes of Ridley, Kraid and Mother Brain.
Include enemies and bosses from the Prime series too, like Metroid Prime / Dark Samus.
From Kid Icarus:
Underworld forces from Kid Icarus, including bosses such as Twinbellows, Hewdraw, Pandora, Medusa and Hades. And it would be nice to include stuff from the second game, the Aurum and the Chaos Kin from Uprising.
From Fire Emblem:
Include red generic soldiers with several classes like Berserkers, Halberdiers, Mages, Generals... and all that. Include beasts from Gaiden and Sacred Stones too. As for bosses... Medeus, Nergal, Black Knight, Deghinsea and Ashera are good ones.
From Pokémon:
Pokémon belonging to a villainous team: personally, I'd like to see Teams Rocket and Plasma. Bosses like legendary Pokémon would be nice and don't forget Ghetsis and his Hydreigon. Cipher from Colosseum and XD would be a nice addition.
Of course, special mentions go to EarthBound and Ice Climber enemies too.
[/COLLAPSE]
of course, with the exception of Dark Samus, dark versions of characters would play like the original, preferably against the original character for a mirror match.
DakotaBonez said:
Dark versions of all the characters. Like in the Subspace Emissary when the shadow bugs did their evil cloning thing. And then when you beat them you unlock the dark skin.
like this post mentioned, we could unlock these alternate versions as playable upon defeating these. characters like Dark Link, Dark Pit and Blood Falcon could fall in this category.
also, all bosses from Brawl could return as well.
It would be great if every stage had a boss battle in the end, like what happens in Kid Icarus: Uprising. would make the Boss Rush mode more challenging in harder difficulties.
like in Brawl, use boss themes from the original games.