To play a game on Easy difficulty where there are double the amount of normal items, go to the Main Menu and hold Right until the "New Game" option turns green. Additionally, hold Right while "Rebirth Mode" is highlighted to play both Rebirth and Classic modes on Easy.
Masters Of Knifing mini-game:
To unlock the Masters Of Knifing mini-game, beat the game.
Unlockable Characters (Multiplayer mode):
Unlock the following characters for play in Multiplayer mode by performing the corresonding tasks:
Albert Wesker - Get a "B" or higher rank in the Masters Of Knifing mini-game.
Barry Burton - Beat Rebirth mode with Jill.
Enrico Marini - Beat all Co-Op levels in Multiplayer mode.
Forest Speyer in Multiplayer mode - Beat Classic mode with Jill.
Kenneth J. Sullivan in Multiplayer mode - Beat Classic mode with Chris.
Rebecca Chambers in Multiplayer mode - Beat Rebirth mode with Chris.
Richard Aiken in Multiplayer mode - Beat all Versus mode levels in Multiplayer mode.
Rocket Launcher - Beat the game in less than three hours. Then, start a new game from your cleared save game file.
To unlock alternate costumes, you must first beat Jill Valentine's scenario with Barry Burton alive or Chris Redfield's scenario with Rebecca Chambers alive. Then, save the game and load the cleared save game file to start with the Special Key in your inventory. Use the Special Key to unlock closet in Mansion 1F to access alternate costumes. The costumes are different in Classic and Rebirth modes.
To view a bonus animation, let Jill idle until she does her hand-on-hips pose, then tap her on her chest or behind with the stylus.
Zombie spit backfire in Rebirth mode:
To backfire a zombie's spit back into them, blow into the microphone when they start spitting.