Biohazard Zero (Resident Evil Zero) is a prequel set hours before the first game, starring Rebecca Chambers and Billy Coen, which introduced the ability to switch between both characters in real time and did away with item boxes in favor of dropping items directly in the environment.
It was one of the few classic Resident Evil games made exclusively for GameCube, and today it's valued as an important piece of the era when Capcom used Nintendo's console as a lab to renew the saga before the leap to Resident Evil 4.
This system doesn't run in the browser yet (Dreamcast, GameCube, PS2 and Xbox are on the way as web emulation matures). The dossier, media and community are already all yours.

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