Secrets
Upon winning, you will be given a ranking (A-F) based on how many times you saved, healed and how long the game took you to complete.
Your ranking will determine what bonus costumes are unlocked. There are five total: S.T.A.R.S. type, Regina (from Dino Crisis) type, Biker type, Disco type and Police miniskirt type. If you win in Easy mode, you can only unlock two. Depending on your Ranking in Hard Mode, you unlock anywhere from 0-5. They are available in the locked boutique (Uptown) once you restart the game.
Also available upon winning (Hard mode only) are Epilogue Files. You will earn one each time you beat the game. They explain what happened to specific characters in the other Resident Evil games.
The best thing you unlock, however, is a grand little game called "The Mercenaries." In this blood-filled adventure, you are given the mission of getting from one side of the city to the other using the mercenaries introduced in the game: Carlos, Mikhail or Nikolai.
To beat the game, you must get from the northwest corner of the Uptown to the southeast corner of the Downtown. You are given 2 minutes to complete the mission, but can gain more time (and money) by killing and dodging baddies along the way.
Completing a mission requires judicious use of both ammo and time, and is not negotiable until you memorize enemy patterns. Luckily, dodging enemies gives you valuable seconds, as does killing enemies in combinations.
When the game ends (either by death or completion of the mission), you will be given a ranking (A-F) and a sum of money. Acrue dollars to buy weapons: $2000 for an assault rifle with infinite rounds, $3000 for a gatling gun (also infinite rounds), $4000 for an infinite rocket launcher and $9999 for an infinite ammo case for all weapons in RE3.
The three characters available employ different fighting styles and have different weapons and healing items. Mikhail is the easiest to win with--his rocket launcher and magnum come in handy, especially against the Nemesis. Carlos requires speed and careful use of ammo. Nicholai is for true champs only.
Enjoy! This game is challenging and rewarding. Once you secure a few infinite ammo weapons, go have some fun in the real game. Simply save and restart, and the items will be waiting for you in the Warehouse item box.