Mercenaries Mini-Game
Beat the game to unlock the mercenaries mini game. 

Mercenaries Mini-Game Characters

    * To unlock Ada Wong in Mercenaries get a 4 star rating on the Pueblo map of the game.
    * To unlock Albert Wesker in Mercenaries get a 4 star rating on the Waterworld map of the game.
    * To unlock Hunk in Mercenaries get a 4 star rating on the Island Commando map of the game.
    * To unlock Jack Krauser in Mercenaries get a 4 star rating on the Castle map of the game. 

Assignment Ada Mini-game
Beat the game to unlock the mini game: Assignment Ada 

Unlock Matilda Weapon
Unlock the Matilda handgun (which fires 3 round bursts) by clearing the game.

Hand Cannon Weapon
Get the five star ranking on the mercenaries mini-game to unlock the Handcannon.

S.T.A.R.S. Uniform
To Unlock The S.T.A.R.S. Uniform You Must Complete The Game On Normal Or Hard Mode. 

Chicago Typewriter Weapon
Beat Operation Ada, and the "Chicago Typewriter", a Thompson with 10.0 firepower, infinite ammo, no reload, and the fire rate of a maxed out TMP, becomes available at the merchant.

Rocket Launcher
Beat the game on Normal and you get a chance too buy the Matilda and the Infinite Launcher. The Matilda is $70,000 and the Infinite Launcher is $1000000.