Cheats for Resident Evil 5 (PC)

Also known as: Biohazard 5
Inventory Duplication:
This requires two very cooperative human players, and a Live connection 
(or a split screen game and two profiles).

1.In the Inventory Lobby, invite a friend.
2.Start the level (use 1.2 to make it easy). Have the host hand items 
  (Rotten Eggs, First Aid, Ammo) off to the guest for duplication.
3.With a full inventory, have the guest leave the game 
  (it should say "All unsaved progress will be lost" -- select "Yes"). 
5.After selecting "Yes," another question for the guest will appear 
  asking whether or not to save status and ammo. Choose "Yes" to save 
  and you will have all the passed-on inventory saved.
6.Now, back to the host: Quit out of the game, but at the second question, 
  choose "No" and do not save ammo and status.
7.Restart the game with the two characters and you'll both have the 
  ammo and items.  Duplication successful! (Note: You cannot do this 
  with weapons as you cannot hand them off to your partner.)
  Addendum: A popular money-making strategy involves duplicating Gold 
  or Rotten Eggs. These are worth $2,000 a pop, and 5 can be crammed 
  in each inventory slot. That means you can eventually be 
  duplicating $90,000 each time. Finding Rotten Eggs can be tough;
  they drop randomly from enemies in later levels. Also, for two people 
  to increase the amount of eggs quickly, you'll have to pass them back 
  and forth, alternating who is saving and who isn't. Finally, 
  you may request eggs from the computer once the guest has quit out 
  to make this process faster.

Unlimited Ammo:
To unlock unlimited ammunition for a weapon, fully upgrade all of 
its attributes, complete the game (all chapters) and buy the ability 
using Exchange Points from Bonus Features (for that weapon only).
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