Load your saved data from Armored Core 2 in the one player scenerio. You will start out with all previously obtained weapons, money and configuration.
It Ain't Over:
Beat the game and save your data. Now load your save data and you will be able to play three new high-paying missions where you face Stinger in his AC (from Armored Core: Project Phantasma), Phantasma (who Stinger had merged with), and Final Nine-Ball (From Armored Core: Master of Arena). Fortunately, you can go overwieght for all these missions. All are very tough. After defeating all three, you will get some very fast hover legs, and an "Inside" orbit cannon.
Overwieght AC:
Beat the game and save your data. Load the saved data, and you may play missions with your AC overwieght.
Enemy Emblems:
Defeat an enemy AC during a mission to unlock its emblem in emblem edit mode.
Save Some Dough($):
Go to the back unit section in the shop. Buy the rocket launcher/s with the description, "Large, powerful rockets." They are under 30000 Cr. and are just as good as the expensive ones.
Hidden Weapons List and Locations:
EWR-M40
Location: Neo Izak - Complete All Missions
Back Weapon
Middle Rocket - EWR-M40
Weight: 568
BEX-BT180
Location: Old Gal - Mission: Attack the military warehouse.
Extension
Turn Booster - BEX-BT180
Weight: 154
EWG-RF-10LB
Location: Old Gal - Complete All Missions
Rifle - EWG-RF-10LB
Weight: 498
BEX-BT180
Location: Old Gal - Complete All Missions
Extension
Turn Booster - BEX-BT180
Weight: 154
ZWR-M/30
Location: Horwick Rocks - Mission: Attack the mountain air base.
Back Weapon
Middle Rocket - ZWR-M/30
Weight: 390
Condition: Enter the right side entrance of the second mountain. Take the elevator up and destroy the crates on the left side of the room.
ELN070
Location: Horwick Rocks - Complete All Missions
Legs - ELN070
Weight: 1880
EWM-M03
Location: Old Zam - Complete All Missions
Back Weapon
Middle Missile - EWM-M03
Weight: 494
ZWC-CN/500
Location: Burrough Hill - Complete All Missions
Back Weapon
Chain Gun - ZWC-CN/500
Weight: 540
ELN-02SLD
Location: Thorn Garden - Complete All Missions
Legs - ELN-02SLD
Weight: 2500
EXM-DD02
Location: Old Avalon - Complete All Missions
Back Weapon
General Magazine - EXM-DD02
Weight: 1408
ZHD-102/ROCK
Location: Zam/Zeram Desert - Complete All Missions
Head - ZHD-102/ROCK
Weight: 481
ELS-7880
Location: Central of Earth - Complete All Missions
Left Arm Weapon
Lasar Blade - ELS-7880
Weight: 386
EWM-NAP-02
Location: Colnart City - Mission: Test defense systems.
Back Weapon
Naplam Missile - EWM-NAP-02
Weight: 420
Condition: Must survive until you are asked to leave 3 times.
EWG-XC213