Silent Line - Armored Core Cheat Codes for Playstation 2

Get Bonus Parts
To earn bonus parts, get an A or S on any mission.

Get Defeated AC Emblems
Hit Start + Select when the victory slogan appears.

Overboost
Hit L3 and R3 to boost at twice the normal speed. Note that you cannot stop until you run into a wall or other object, so you may use all your boost.