Versus mode Platform: Playstation 2
Successfully complete the game on any difficulty setting to unlock versus mode with five frames and most stages. Successfully complete the game on any difficulty setting twice to unlock the remaining two frames and stages.
Alternate ending music Platform: Playstation 2
Successfully complete the game on any difficulty setting and get an "A" rank on all five rescue missions to hear a different ending theme during the end credits.
Full health and ammunition Platform: Playstation 2
Pause the game and press L1(2), L2(2), L1, R1, L1, R1, R2, R1. Note: Each time this code is used your level will go down by one.
Disco mode Platform: Playstation 2
At the title screen, press Up, Down(2), X, Triangle, Left, Right, Square. If you entered the code correctly you will hear the sound of an explosion. In this mode, all enemies will be replaced by giant floating disco balls and the screen will flash all different colors. Successfully complete the game in this mode to receive a special surprise.
City 1: Destroying the Relay BlockPlatform: Playstation 2
During your first visit to City 1, you are required to destroy a Relay Block but there is a forcefield in the way. You also lack the necessary weapon to do so. Exit the city and revisit Town 2 for the second town. There will be new enemies you need to kill. After that, Ada will tell you some information on "porters". Destroy all the purple blocks you see to release Vector Trap. Obtain the Sniper and return to City 1. Equip the Sniper, aim for the white dots on the rotating column and fire.
City 2: The GauntletPlatform: Playstation 2
Find the enemy with the passcode and defeat him. Then, leave and go to EPS 2. Find the metal thing where it says you need the Gauntlet Passcode. Get close to it on the ground and you will know what to do.
Town 3: Rescue MissionPlatform: Playstation 2
After the first encounter with Tyrant, you will be presented with a rescue mission that takes place in Town 3. There are only three squads of enemies here. However, remember that Jehuty is infected with a virus. It will die with one hit. Use "Dash" to get to the sides and avoid incoming projectiles. Use your Dash Shot to slowly kill the enemies. Do not try to get in close and use your Energy Sword. You will be left vulnerable to other enemies nearby. After the mission, do not leave. Destroy the porters on top of the buildings to get a program.
S.O.S. missions: Higher rankingsPlatform: Playstation 2
During the S.O.S. missions, engage in combat with an enemy squad, then start to fly away. This lures them away from the survivors buildings and therefore causes minimum casualties which will earn you the higher rankings. Use the [Circle] attack when in close combat to grab an enemy, then turn to face away from any buildings and release [Circle] to send the enemy flying away from any survivors and possibly destroying them at the same time.
HalberdPlatform: Playstation 2
After obtaining the "Halberd" drive and program, return it to the local server to gain the "Halberd". This powerful plasma sword is one of the strongest weapons in the game. To wield it effectively, use it against enemies that have a Halberd of their own. Enemies that fight with Halberds are extremely dangerous -- use your own Halberg to take them out fast.
Unlock extra options: Platform: Playstation 2
Complete the game on any difficulty level with rank D or above to enable the versus option on the main menu.
Complete the game a second time to unlock the remaining two orbital frames and two battle levels in versus mode.
Complete the game 50 times on one player versus mode to get Anubis as a playable frame.
Alternate ending sequences: Platform: Playstation 2
Earn an "A: rank in all S.O.S. calls. New music will play during the ending sequence. Intentionally do badly during the game by destroying all buildings and killing all survivors during the various missions. This includes completely destroying the colony shaft during the last SOS mission. Defeat Tyrant and go to the Mountain 1 level to view the worst ending.
Sites: