Resident Evil Zero is a survival horror video game developed and published by Capcom. It is the fifth major installment in the Resident Evil series and was originally released for the Nintendo GameCube in 2002. It is a prequel to Resident Evil (2002), covering the ordeals experienced in the Arklay Mountains by the special police force, S.T.A.R.S. Bravo Team. The story follows officer Rebecca Chambers and convicted criminal Billy Coen as they explore an abandoned training facility for employees of the pharmaceutical company Umbrella. The gameplay is similar to early Resident Evil games, but includes a unique "partner zapping" system. The player controls both Rebecca and Billy, switching control between them to solve puzzles and use their unique abilities.
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