Resident Evil 4 All Secrets Revealed! Resident Evil 4 is loaded with secrets and unlockable features. Here's how to unlock almost everything-from extra costumes to special play modes. By Major Mike Ada's Report Complete Chapter 1 of Separate Ways and save the game to a memory card. Restart the game and at the main menu, select Extras and Ada's Report will be an option. Assignment Ada Complete the game on Normal mode and save the data to a memory card. When you restart the game, go into Extras and Assignment Ada will be added to the menu. Chicago Typewriter Complete Separate Ways and save the game to a memory card. Start a new game using the saved game data, and Leon can purchase the weapon from the Merchant. Ada can also obtain this weapon for her second play through of Separate Ways. Infinite Rocket Launcher Complete the game on Normal mode and save the data to a memory card. Start a new game using the saved data, and Leon can purchase this item from the Merchant. Leon's Italian Suit and Ashley's Armor Complete the game on Normal mode and save the game to a memory card. Start a new game using the saved game data and you can select this costume. Leon's RPD Costume Complete the game on Normal mode and save the data to a memory card. Start a new game using the saved data and Leon's RPD costume will be available. Matilda Complete the game on Normal mode and save the data to a memory card. Start a new game using the saved data, and you can purchase this item from the Merchant. The Mercenaries Complete the main game and save the data to a memory card. When you restart the game, go into Extras and The Mercenaries will be added to the menu. Play as Ada in The Mercenaries Pass the Pueblo stage in The Mercenaries with a four-star rank or higher. Play as Wesker in The Mercenaries Pass the Waterworld stage in The Mercenaries with a four-star rank or higher. Play as Hunk in The Mercenaries Pass the Commando Island stage in The Mercenaries with a four-star rank or higher. Play as Krauser in The Mercenaries Pass the Castle stage in The Mercenaries with a four-star rank or higher. Handcannon Complete The Mercenaries with all five characters scoring a five-star rating on every stage. Start a game in Normal mode and Leon can obtain this item from the Merchant. P.R.L.412 Complete the main game's Professional Mode and save the data to a memory card. Start a new game using the saved data, and Leon can obtain the P.R.L.412 from the Merchant. Professional Mode Complete the game on Normal mode and save the data to a memory card. When you start a new game, Professional mode will be an option. Separate Ways Complete the game on Normal mode and save the data to a memory card. When you restart the game, Separate Ways will be added to the main menu.