Emblem Background:
Create an Emblem and go to the 'Edit Emblem' screen, and press L1+R1+L2+R2+Select. It should now be set as your new background wallpaper.

Fire the Lazer Blade:
You can fire a beam of light from your lazerblade. To do this, hit O to use the lazerblade, then as the arm comes down hit X. It has no lock so you really need to have good aim. If done correctly it will fire a crescent shaped beam. This cheat only works after you have enabled the 4th death advantage, firing back weapon while moving (see below).

Unlimited EP, Leg WP and Core WP:
Once you complete 100 missions, the game will automatically give you unlimited leg weight points, core weight points, and generator output points. So now the only limit will be your cash.

Cockpit Mode:
When playing, press Start+Square+Triangle to switch to cockpit mode.

Camera Mode:
While playing press Start+Circle+X at the same time. The camera will stay where it is while you move. Hard to play like this, but fun!

Advantages of Death:
If your debt falls below 50,000 you start the game over with all your items and a special ability...

1st time: grid radar
2nd time: nothing
3rd time: radar missile display
4th time: fire back weapon while moving
5th time: nothing
6th time: double booster power