Nintendo vs Sega

Nintendo vs Sega is a Marvel vs Capcom-style fighting game using the CPS-II engine. It has the same style as the original MvC game, only with Nintendo and Sega characters.

Story
This takes place after the original Super Smash Bros. if Mario defeats Master Hand in that game's arcade mode.

Following his defeat, Master Hand gains strange new abilities, including dimensional distortion. Months later, He uses these powers to find Mario and exact his revenge. Howexer, what he didn't know is that beings from another realm (the Sega universe) had teamed up with Mario and other select Nintendo heroes to stop Master Hand.

Characters
Characters were decided upon due to their appearances in games up to Super Smash Bros.'s release year (1999).

unlockable characters
Nintendo

Captain Falcon

Rec: defeat master hand as sonic in 2 minutes on hard mode or higher

Jigglypuff

Rec: complete adventure mode or classic mode with any character on any difficulty

Ness

Rec:obtain a 30 hit combo as Opa-Opa or Any unlockable or play 100 versus battles

Luigi

Rec:clear classic mode as any Nintendo character without any continues

Dark meta knight (meta knight clone)

Rec:unlock all Nintendo assistant characters

Sega

Knuckles

Rec: defeat an opponent with a "special combo" followed by an "ultimate combo" or clear story mode and complete classic mode in that respective order.

Ryo Hazuki

Rec: clear SMASH BROS mode with 2 stocks on hard or higher

Assist characters
Nintendo: Wario, Diddy Kong, Charizard, Little Mac, Dr. Wright, Marth, Sheik, Pikmin and Olimar, Greninja, Black shadow, Lucas

Sega: Amy, Akira, Metal Sonic, Toejam, Bahn, Bean and Bark, Death Adder, Amigo, Big, The Ooze, Ulala

Stages

 * Peach's Castle
 * Green Hill Zone
 * Hyrule Field
 * Turtle Village
 * Viridian City Gym
 * Dream World
 * Corneria
 * Earth 2049
 * Fountain of Dreams
 * Angel Island
 * Final Destination (Boss Stage)