Resident Evil 0

Pretty Simple Achievement to Unlock guys. I Unlocked this Achievement Playing Wesker Mode with Infinite Ammo. Plus I unlocked the Magnum Revolver for collecting 100 Leaches as well. Just don't Combine any herbs at all. U can still use First Aid Sprays. Once u beat the game without Combining Herbs. The Achievement will Unlock. Here is a Full Walkthrough Video I did playing Wesker Mode. I didn't Use First Aid Spray, No Combining Herbs, No Save. Hope this helps :)