Battle mode:
Successfully complete the game on any difficulty setting with any ranking. Then, battle mode will automatically be saved to the memory card and selectable at the main menu.

First person view option in battle mode:
Successfully complete the game on the easy or normal difficulty settings with any ranking to enable an option to play battle mode in first person view.

Play as Steve Burnside in battle mode:
Get the Gold Lugers from the basement office in Disc 2. The correct combination is red, green, blue, and brown. You can also unlock Steve Burnside by performing well with the original Chris in battle mode.

Play as Albert Wesker in battle mode:
Perform well with Chris in battle mode.

Play as alternate Claire in battle mode:
Perform well with the original Claire in battle mode.

Linear launcher in battle mode:
Get an "A" ranking with Chris, Steve Burnside, Albert Wesker and both versions of Claire in battle mode to unlock the linear launcher. It will appear in your inventory during the next battle mode game.

Rocket launcher:
Get an "A" ranking in the normal game by completing it without saving, no first aid sprays, and no retries. Additionally, save Steve from the Luger quickly, give the Medicine to Rodrigo, and complete the game with a time less than 4:30. The rocket launcher will appear in the first item box in the next new game.