Epic Saga: The Video Game

As the name implies, Epic Saga is, indeed, epic. This game will be only for Wii and the ESRB will most likely be given a T for Teen for its mild blood and violence.

Epic Saga will likely never come about because its heavily based off of fan-made content. However, this is an original idea and may be considered good.

The gameplay is very unique from others because you can switch from an RPG style to a beat-em-up style. To make things clearer, the gameplay is this. Say you go through the level and beat up the enemies and bosses on the fly. The enemies drop EXP points, items, and coins, but not as much as when you do what I'm about to say next. Next you switch to RPG stlye and as soon as you run into an enemy, a turn-based battle begins. This takes long and can be agonizing at times, but if you want to improve your character's stats, this is a must. Please note this has no impact on level progress and is completely optional.

If I get the approval of SaurianJared and Geniusguy445, I'll make the idea for the sequel. Believe me, the sequel will be epic.

The Movement against Mario (all based off of actual users)
This is the foremost team out of the entire game. Dry Bowser sent Beecanoe to form a team of six to destroy Mario while his own team destroys the world.
 * Beecanoe: most loyal servant of Dry Bowser
 * Jared the "Saurian": a boy from the planet Sauria that can transform into the golem-like Saurian
 * Genius Guy: a super-intelligent green Shy Guy whose species is most loyal to General Guy
 * Dry Paratroopa: Dry Bowser's messenger and a good friend of Beecanoe
 * Mr. Bones: the greatest Dry Bones/Vampire mastermind to ever grace the Mushroom Kingdom. Dry Bowser works for him, but the skeletal beast's minion Beecanoe is friends with Mr. Bones and they see each other as equals
 * Galactic Petey: following Petey, Dino, Fiery Dino, and Peewee, Galactic Petey is the next in the line of Bowser's monstrous Pirahna Plants. Galactic Petey's immense power might allow him to be the one who will defeat Mario.

Of Heart and Soul

 * Mario
 * Sonic
 * Megaman
 * Cloud
 * Master Chief
 * Roid: Reploid of Darkness who watches over the Mushroom Kingdom from Star Hill along with Geno.

The Order of the Apocalypse

 * Bowser
 * Dry Bowser
 * Mecha Sonic
 * Bass
 * Sephiroth
 * Lord Apocalypse: once an evil thief who made a wish to a genie to make him the most powerful being in the world for the price of giving him an appalling physique.

The Fellowship of the Hearts of Gold

 * Luigi
 * Knuckles
 * Pit
 * Link
 * Yoshi
 * Zero

The Brotherhood of the Blade

 * Ike
 * Ichigo Kurosaki
 * Metaknight
 * Riku
 * Sasuke
 * Lloyd Irving

Girl Power

 * Samus
 * Peach
 * Zelda
 * Amy Rose
 * Roll
 * Lightning

Chaos Squadron

 * Shadow
 * Knuckles
 * Espio
 * Chaos
 * Omega
 * Silver

The Mushroom Kingdom Alliance of Just

 * Geno
 * Starlow
 * Prince Peasley
 * Goombella
 * Parakarry
 * Tippi

Mario's Forgotten Enemies

 * Fawful
 * Smithy
 * Dimentio
 * Wart
 * Tatanga
 * Dark Bowser

The Apocalyptian Servants

 * Deathbane
 * Doombot 4000
 * Necronius
 * The Grim Reaper
 * Fireknight
 * Ogwrath

The Movement Against Bowser (rival of the team shown at the very top)

 * Mateoelbacan
 * Edofenrir
 * Zero 777 Knight
 * Booderdash
 * Mecha Boss Unit
 * Blue Yoshter

The Demons of the Netherworld

 * Hollow Ichigo
 * Kusanagi (from The King of Fighters, if you haven't already caught that one... He is a "magic mirror" of Kyo Kusanagi created by Chizuru Kagura when she was under the control of Mukai and Botan)
 * Eggman Nega
 * Iori Yagami
 * Ganondorf
 * Tabuu

The Future Gods of Righteousness

 * Megaman X
 * Vincent Valentine
 * Axl
 * Haku-men
 * KOS-MOS
 * R.O.B

The Soulless Ones

 * Hookbill the Koopa
 * Naval Piranha
 * Kamek
 * Bouldergeist
 * Count Bleck
 * Akuma (comes with "Shin Akuma" form; 'Gouki' in original version of Street Fighter)

The Earthbound Heroes of Virtue

 * Ness
 * Jeff
 * Paula
 * Poo
 * Lucas
 * Porky

The Unknown Warriors of Anime

 * Goku
 * Vegeta
 * Naruto Uzumaki
 * Kenshiro
 * Light Yagami
 * Soul Eater

Unity of the Black-Hearted

 * Black Doom
 * Ashnard
 * Giygas
 * Shadow Mario
 * Tiki Tong
 * Zant

Big Heroes

 * Donkey Kong
 * Big the Cat
 * Vector the Crocodile
 * Goron
 * King Dedede
 * Charizard