The expansion to Armored Core 2 runs on the same game engine as its predecessor but features a number of changes in the way the game is played. There is no trial mission in Another Age that kicks the game off, the player is simply thrown into the world with their AC and their first job offer right there waiting for them. The Arena, which played a significant role in Armored Core 2 has been scaled back a bit, but a fair number of the game's missions involve one-on-one combat with other Ravens in a set-up unlike Armored Core 2's Arena. Another Age has no expressed plot; it is more a portrait of the life of a mercenary, always bouncing about from place to place and not getting tied down to any particular cause. Occasionally recurring elements pop up from time to time as the game progresses, but there is no defined storyline to the game. Instead, there are over 100 separate missions that make up the mass of the game, the largest Armored Core title to date and each mission plays out in a specific area of the world map screen that would reappear in following AC titles down the road. Another Age is also noted for its cameo appearances. Past enemies from previous Armored Core games Stinger and Nineball appear as bosses in several special missions that are unlocked once you clear all 100 of the game's missions.

GAMEPLAY HINTS

Balboa City (Destroy Space Transport): Fly into space

Go to the spaceship, but do not destroy it. Instead, jump on top and just stay there. Wait for the spaceship to leave. You will view your AC escaping from Earth on the spaceship and flying to Mars. All you will view is the spaceship leaving the space port, but it is fun to watch. Your AC will not fall off the ship, even when it flies at an angle. Note: If your AC has less than 5000 AP, this will not work as your AC will be destroyed before it leaves.

Bioweapon: Defeating Bio-Bug

When the level starts, kill the first few bugs( you should know where they are). The bioweapon is down the hole. Go down the hole facing the bug, then quickly fly back up and land back on the upper floor. Stand there and look down for a few seconds. Eventually the bug will just die.

Colnart Bay City (Probe Balena Defenses): Hidden AC part

Attack the enemy until you receive three messages from your operator telling you to come back at your leisure. You will then receive the Napalm Missile. This is a relatively weak weapon, but it lights the enemy on fire and causes their heat to spike. It is useful for versus matches.

Earth Central (Eliminate Intruder): Defeating Intruder

Equip the Back Weapon ZWX-IV/PURSUIT Pursuit Missiles. When the battle begins. boost to the back right of the room into the corner. Keep firing at the AC until it gets stuck on the walkway above you. When it does, switch to the Pursuit Missiles. Aim up and just away from the walkway so that the missile pods will not hit it but fly by. The missiles will destroy or greatly weaken the AC, making him vulnerable. Note: You may have to redo this mission a fre times as the AC does not always get stuck on the walkway.

Eyelet City (Test New MT Model): Hidden AC part

Win the mission as soon as possibly by destroying all four D-1 MTs. Zio Matrix will award you the Inside Dummy Maker - INW-DM-MV part. Note: try using the fastest bipedal legs (ZLN-WAO2/SS) to get it.

Horwick Mountains (Attack The Airbase): Hidden AC part

Go to where the second line of mountains start and look for a door on the right that has "Area 99" on it that you can open. Enter it and go up the elevator. You will be in a room containing many boxes. Destroy all the boxes. One of them will contain the Middle Rocket Launcher - ZWR-M/30.

Once you completed the main set of missions in Another Age, a new area became accessible. Called the Lost Field it offered three new missions against foes from the PSone games: