Level select
Begin a new game and as a case-sensitive name enter !EVAH!.

Invincibility
Begin a new game and as a case-sensitive name enter B4K42. The "God mode" selection will now be available at the options screen when the game is paused.

Every bonus
Start a new game and as a case-sensitive name enter 105770Y2. Note: The code has the number "zero" and not a capital letter "o". All character biographies, vehicle specifications, FMV sequences, and concept artwork will be available.

Multiple codes
Begin a new game and enter more than one code at the same time to activate each of them all together. For example, enter B4K42105770Y2 as a case-sensitive name.

Hints & Tips

Jet mode
The weapons in Jet mode are noticeably less effective that the weapons in Walker mode. Couple this with the detail that Jet mode does not allow the Shield to generate. Only use Jet mode when you need to blow something up or kill a Fighter (or any other air units like bombers, landers, etc.) in the air. Remain on your side of the battle, as it will be nice to have a helping hand when things become rough. Try not to use all your energy while in Jet mode, when you land you will have no shield. Repair Pads are your friends use them wisely.