Unlock
     This  will unlock Infinite Ammo for All Weapon BUT the Magnum and
the Rocket Launcher will not have infinite Ammo for the New Game.

Remember, it's Infinite Ammo but not Infinite for the current Clip.

This is also unlock all the Select game.

Unlockable:                        How to Unlock:

Unlock Infinite Ammo for Allen     Finish the Game with Allen

Unlock Infinite Ammo for Celia     Finish the Game with Celia

Unlock All Weapon for Allen        Finish the Game with Allen

Unlock All Weapon for Celia        Finish the Game with Celia

Unlock All Mission 
on Select Game 
for Allen and Celia                Finish the Game with anyone