Code Shifter is an action platformer crossover game by Arc System Works featuring characters from the company's most renowned franchises, including Guilty Gear, BlazBlue and the River City series. The game is presented in a retro pixel art style, with an 8-bit inspired music score featuring remixes of several iconic themes from all the series involved. Up to 30 playable characters can be unlocked, in addition to another 70 that make cameos as support characters.
Stella is a game developer who works at "Awesome Rainbow Corp". Her task: Eradicate all remaining software bugs from the company's upcoming (and biggest) release. The problem: The game is scheduled to be released the next day!
While struggling to clean up the program, numerous software errors unexpectedly start to appear. With the deadline just a few hours away, she resorts to an experimental debug program known as "CODE SHIFTER". With it, she takes control of "Sera" –her digital avatar– and thus is able to fight all issues from within.
During her digital adventure, she meets numerous allies willing to lend her a hand, each with their own special abilities and themselves supported by even more characters.
Billy and Jimmy Lee, Abobo and Willy, from the Double Dragon series, appear as a guest playable characters. Other characters from this franchise that also make a cameo include: Chin Taimei, Ranzou and Burnov.
Berserker, Bullova and Blitz from The Combatribes are also featured in this game.