Teenage Mutant Ninja Turtles Smash-Up

Teenage Mutant Ninja Turtles Smash-Up is a fighting game for the Nintendo Wii and Sony PlayStation 2. The game is published by Ubisoft and is developed by former members of Team Ninja (responsible for the Dead or Alive and more recent Ninja Gaiden games) and Game Arts, who worked on Super Smash Bros. Brawl. The character roster is being decided by members of Mirage Studios, and the game's storyline is written by Peter Laird and Matt Leunig.

Story
The plot involves Splinter holding a tournament for his sons, Casey Jones, and April O'Neil; Splinter himself also decides to join the tournament. After the winner is crowned, they are told to choose one trophy and something from Splinter's personal cabinet. However, suddenly, Professor Honeycutt calls them on the distress line, telling the Turtles that he has been kidnapped by Shredder. Shredder breaks in on the communication and indicates that the line is not secure and taunts the Turtles, saying they won't retrieve Fugitoid. Pondering outside, Karai appears and says that Shredder captured Fugitoid in order to force him to make a Transmat to teleport his armies all around the world.

After defeating The Shredder, Karai reveals that she used the Turtles to get rid of Shredder so she could usurp the Foot clan from her father. Shredder stands back up, and Leonardo kicks him into Karai. Honeycutt flips the switch on the Transmat, which Shredder and Karai have landed on, and teleports them to parts unknown. Back in the sewer, Splinter presents the prizes to the tournament's victor.

The game comes with a comic book that outlines the story further, up to prior to Shredder's defeat. Scenes that were not in the game include Donatello rigging Renet's Time Scepter to transport them to Shredder's Tokyo base, but it malfunctions and they zap across time, which provides an explanation for the bizarre stages such as the Old West and Japanese Castle. Upon their first teleporting with the Scepter, a giant alligator bursts through a sewer wall, which is accidentally transported to an Amazon rainforest, which explains why the gator stage hazard is in both the Sewer and Amazon stages. While at the Japanese Castle, the Turtles face an army of samurai, which turn out to be the Japanese demon known as Oni. The story ends after Fugitoid is rescued, and Shredder appears for battle.

Gameplay
The engine of the game matches that of the Super Smash Brothers series of video games, but there are a few differences, one being that rather then a hit point counter, you have an actual health meter. Gameplay videos show that some characters are able to perform a wall kick, allowing them to jump off a wall. There is also an emphasis on using the enviroment to fight, meaning that in one stage, you will be able to use a sign to electrocute your enemies, and the environment also forcefully changes, meaning that fights will not always end at the same place.

The game is also being worked on by Team Ninja, who made the Ninja Gaiden and Dead or Alive games, this can be seen in the combat, which includes red poles which characters can swing on. They are also working on the Story mode gameplay.

Playable Characters
The game's roster is being chosen by Mirage Studios, and is said to have characters "You know well in addition to surprise characters you wouldn't expect."

It is unconfirmed whether or not all of these characters will be involved in the story.
 * April O'Neil (Veronica Taylor)
 * Bebop
 * Casey Jones (Marc Thompson)
 * Donatello (Sam Regal)
 * Foot Ninja
 * Fugitoid (Oliver Wyman)
 * Karai (Karen Neil)
 * Leonardo (Michael Sinterniklaas)
 * Michelangelo (Wayne Grayson)
 * Nightwatcher (Frank Frankson)
 * Ninja Rabbid (Yoann Perrier)
 * Raphael (Frank Frankson)
 * Raving Rabbid (Yoann Perrier)
 * Shredder (Scottie Ray)
 * Splinter (Darren Dunstan)
 * Splinter Rabbid (Yoann Perrier)
 * Utrominator (Michael Sinterniklaas)

Alternate Costumes
Some, but not all, characters, have unlockable alternate costumes, many of which have roots in TMNT history.
 * April: Resembles her 2003 cartoon outfit, although she has khaki shorts instead of pants.
 * Casey: Similar to his TMNT: Back to the Sewer standard gear.
 * Donatello: Modeled after the unreleased Playmates toy of "Cyber Don".
 * Foot Ninja: Cyber Foot
 * Karai: Golden Amazonian Blade Bot
 * Michelangelo: White clothes, orange helmet, headphones, has a skateboard strapped to his back. Referred to as "Hip-Hop Mikey" in a character trailer.
 * Raphael: Based on the Raphael figure from Playmates' unreleased "Music Turtles" line. Has a Mohawk on his head and an electric guitar strapped to his back.
 * Shredder: Cyber Shredder
 * Splinter: Blue kimono with intricate design

Trivia

 * Most of the cast is modeled after their 2007 film incarnations, where applicable. The Turtles, however, do not have visible pupils through their masks. Shredder's armor is the same as his standard 2003 cartoon appearance, albeit the shade of the armor being darker, and he wields the Sword of Tengu. Fugitoid is identical to his 2003 counterpart.
 * The voice cast for this game was taken from the 4Kids series.
 * Jim Lawson provided the art for the story cutscenes and pack-in comic book.
 * This is the first console TMNT game to not appear on a Microsoft console since 2003's Teenage Mutant Ninja Turtles.
 * Ubisoft's Rabbids make a guest appearance as playable characters: the Raving Rabbid, which is dressed in a speedo, Ninja Rabbid, which is dressed like a Ninja Turtle (with a toilet lid for a carapace), and Splinter Rabbid, which dons the outfit of Splinter Cell protagonist Sam Fisher.
 * Leatherhead, Rocksteady, and Bebop were the most heavily rumored characters for the game, and actually had significant evidence supporting their inclusion. Leatherhead was read from a list of characters in a video at 1up.com. Bebop and Rocksteady were included in cast lists on various gaming news sites.
 * The narrator's voice is provided by Darren Dunstan.
 * If one looks hard, they can see Raphael's face through the Nightwatcher's helmet, which strangely have the pupils, when Rapheal does not.