Mission select:
Click Left Analog-stick, press Black, R, click Right Analog-stick, press White, L at the mission selection screen.

Mission skip:
Click Left Analog-stick, press White(2), Back, click Right Analog-stick, press White during a mission.

Alternate music:
Click Left Analog-stick(2), Right Analog-stick(2), press L, R at the title screen.

Joke mission briefing:
Play missions 1, 3, 6, 8, 9 or 14, then press L(2), R(2), click Left Analog-stick, Right Analog-stick at the armory screen before launch.

Hint: Flak Cannon:
The Flak Cannon works well at close range. Fire it at the first group of landing craft then use your pistol for the tanks at long range.

Hint: Destroying motherships:
Try landing on them and give them an up close and personal look at your Flak Cannon.

Land on the motherships and shoot the sides and back with your Assault Cannon/Flak Gun. Then, fly off and use missiles on the sides and belly.

Hint: Infiltration radar:
If you do not want to be seen by radar, fly over them as high as you can.

Hint: Exploding dinosaurs:
In Zone One, if you go behind the weapons armory there are dinosaurs that will explode if shoot them with anything besides the Vulcan Cannons or the Machine Pistols. If you do, they will just die.

Hint: Custom soundtrack:
Go to the options menu at the main screen. If you have already created your own soundtrack on the hard drive, you can listen to it during the missions.