Resident Evil 2: DualShock Ver., known as Biohazard 2 DualShock Ver.(バイオハザード2：デュアルショックバージョンBaiohazādo Tsū: De~yuarushokkubājon) in Japan, As the title suggests, is a second expanded version of Resident Evil 2 that became the base of other subsequent versions/ports of the game. The game was modified to incorporate support for the vibration function and analog control of the PlayStation DualShock controller.