The gameplay in Resident Evil 3 is essentially the same as previous installments with only a few minor adjustments to core mechanics. Unlike the first two games, the player is unable to choose one of two playable protagonists, instead playing solely as Jill. Akin to previous titles in the series, the player is able to control a supporting protagonist -- Carlos Oliveira. It was also the first game in which the player can go up stairs without having to push a button on the controller. All the later games had this feature with the exception of Code Veronica.