Stage-specific A ranks for new character unlocks (40,000+ points in single player, 80,000+ points in co-op constitutes an A)
Chapter 2-1, take all the items at the beginning and then Quit the game. Return to the game by selecting "Continue" and you will begin Chapter 2-1 with the items you got before you quit the game, however, the items at the beginning (you took just now) are still at the same place, so you can obtain them again. Repeat the same thing to get as many as you like.
Note: This works on any stage, this is just one example of how to benefit from it.
To unlock the Rocket Launcher with infinite ammo, beat the game under 5 hours on any difficulty, and turn infinite ammo on under bonus features.
Complete the following tasks to unlock Resident Evil 5 items in Home
These are the 8 unlockable characters for the DLC Versus Mode. While the same as Merceneries, they only have slightly different weapon-sets.