The first re-release was the Dual Shock Ver. on PlayStation, which incorporated support for the vibration and analog control functions of the DualShock controller. Other additions include a new unlockable "Extreme Battle" mini-game and an "Arrange Mode" sub menu with unique gameplay difficulties. One of these is "Rookie" mode, which shares the same difficulty as the original "Easy" mode but enables the player to start the main story with the S. Machine Gun in the inventory and the Gatling Gun and Rocket Launcher in the item box. All three weapons have unlimited ammo. A "U.S.A. Version" mode exclusive to the Japanese release featured the gameplay additions of Resident Evil 2's North American releases.