800EB100 F78A 800EB102 382F 800EB104 2B1B 800EB106 E293
The codes listed here are the result of the community's 20+ years of reverse-engineering Front Mission 3's memory map. They are safe, effective, and transform the game from a grindy tactical sim into a sprawling mecha combat sandbox. To save you scrolling, here is the entire cheat set in one block for DuckStation/ePSXe:
300F0488 0063 800F048A 2401
It writes a "1" (owned) flag for every weapon ID from 00 (Standard Knuckle) to 99 (Golden Fist). After activation, visit the "Equip" menu at any Hangar. Your weapon list will span over 20 pages.
Shoulder weapons in Front Mission 3 are locked behind both Shop Level and character rank. This code bypasses both. You can now equip the Marduk RP (ID 79) — a 150x6 rocket launcher — on a level 1 pilot.
Have you found a specific weapon combination with these codes that breaks the game? Share your build in the comments below.
Note for emulator users: DuckStation and ePSXe often auto-apply a Master Code when you tick a standard cheat box. If your emulator has a "Front Mission 3 - All Weapons" pre-set, it likely includes this already. This is the core of the "all weapons" search. This code fills your inventory with every hand-held weapon: Machine Guns (MG), Shotguns (SG), Flamethrowers (FT), Melee weapons (Punch/Knuckle/Rod), and Rifles (RF).