The community has archived extensive lists of codes to manipulate your arsenal on sites like IGN and Scribd .
Here’s a useful for Front Mission 3 that lets you unlock all weapons (including secret/shop items) in your inventory, sorted by type. front+mission+3+gameshark+codes+all+weapon
GameShark codes for "all weapons" in Front Mission 3 typically work by modifying the equipment slots of specific pilots. Below are essential weapon-related codes: Weapon Weight (0 Weight) The community has archived extensive lists of codes