M93R pistol (Samurai Edge Custom): Fully upgrade the M92F pistol. Longbow for Sheva: Fully upgrade the S75 rifle. Hydra triple barrel shotgun: Fully upgrade the Ithaca M37 shotgun.
Gatling gun for Chris: Fully upgrade the VZ61 machine gun. Upgrade the indicated weapon fully to unlock the corresponding bonus weapon for purchase from the shop: Then, enable the 'Infinite ammo' option under the 'Bonus Features' menu. Successfully complete the game on any difficulty in under five hours to unlock the Infinite Rocket Launcher. Successfully complete the game on the Veteran difficulty to unlock the Professional difficulty and 'Noise Filter' option. Successfully complete the game on the Normal difficulty to unlock the 'Retro Filter' option. Successfully complete the game on the Amateur difficulty to unlock the 'Classic Horror Filter' option. Successfully complete the game on any difficulty to unlock Mercenaries mode, New Game+ mode, 'History Of Resident Evil' option, 'Infinite ammo' option (must fully upgrade a weapon then purchase the unlimited ammo from the 'Bonus Features' section with points), ability to play as Sheva Alomar, and Chris' Safari and Sheva's Clubbin alternate costumes. Note: This game is also titled Biohazard 5.
