0 was originally announced for the Nintendo 64 in 1999. This
was a big move, as the series was already well-established
on the PlayStation and CODE: Veronica was also coming to the
Dreamcast. It was also going back in time, adding more plot
to the beginning, by starring Rebecca Chambers and an
ex-Marine convict named Billy Coen.
The N64 and its
cartridge software offered Capcom the ability to have two
players controlled at once via realtime switching, something
that would have required long load times on the PlayStation.
However, N64 cartridges hold far less than a CD-ROM,
requiring creative use of compression techniques to fit all
the data that appears in a typical Biohazard game.
In 2000, Capcom
cancelled Biohazard 0 for the N64 and moved it to its
successor, the GameCube. The N64 was slowly being phased out
in factor of the GC at that time, and the GC's more advanced
game hardware allowed Capcom to make a more sophisticated
game that was released in November 2002. Six years later,
Capcom brought Biohazard 0 back into the spotlight with a
near-exact Wii port.
In spite of its
evolution from an N64 game into a GC game, little of the
game's concept changed. They kept Rebecca and Billy as
protagonists, and the game's locations and story hardly, if
at all changed, as proven by artwork available in various