Seek And Destroy

1000 Gold:
Enter KWNOHIRO as a password at the suspicious looking pink tank in first town.
Stackout.

Boundbomb weapon:
Enter KKHWEEEE as a password at the suspicious looking pink tank in first town.
Stackout.

AirGatling weapon:
Enter GSASINRI as a password at the suspicious looking pink tank in first town to unlock the AirGatling weapon for the sub-weapon B configuration. It is for shooting down aerial targets only.
Jeff Cornwell and Surj Ronin.

Grand Flag:
Enter ODGRITRO as a password at the suspicious looking pink tank in first town.
Stackout.

Alternate introduction sequence:
Press Triangle at the "Press Start" screen.

Hint: Angel Wings special part:
Successfully complete the game to unlock the Angel Wings part. These allow you to fly without using a lot of fuel.
Stackout.

Hint: Devil Wing special part:
Win all arena battles to earn the Devil Wing special part.
thefunmachine.

Hint: Defeating the Last Master:
The Last Master has three forms. The first two are easy -- shoot him and kill him. The last form is difficult. You have to shoot the tank under him and destroy it. He will fall down. Make sure you hit his face when he falls down. His armor is weak when you shoot him. However, it is difficult to shoot him when he falls down because the gears are moving. Be careful, as they may crush you. When the boss gets up, the tank that is under him regenerates and you have to destroy it again. Repeat this process until he is defeated. Note: Shooting his face has no effect.
Stackout.

Hint: Easy money:
First, get enough money to buy the Blaster. You will not get this chance until about the fourth level. Buy it, then go to any battle arena and equip the Blaster; the Marder III is recommended as most tanks will not equip it. Select the Difficult tank to battle. When the battle begins, move up to just before where the battlefield begins and shoot off the Blaster rocket. If you did not turn or do anything else, you should at least get close to getting a hit. Adjust it until you hit the enemy and watch his power dwindle to nothing. Do this about four times to get 2000 gp. You can get 500 gpfor a tank if it has already been destroyed, or 1000 if you have not defeated it. Try this more than once. It requires some practice, but is worth it.
jjMadBoy.

This requires a Long Shot and Gloonstat. Go to the Expert Arena and play a Web Battle under the difficult setting. As soon as the game begins, shoot him with your Long Shot to knock him off the arena. You will win 1200 gp for the first time. If you win again, you get 600 gp.
Butulan.

Hint: All gear in battle mode:
When first starting out in story mode, choose a tank and battle with it to gain money. Then once you have a lot of moneym go to the shops and buy equipment. Equip it and save the game. After this, sell it and buy different items. Repeat this until you have all the gear desired. Once done, go to battle mode and select "Custom Tank". You will now able to customize it with any gear desired.
Chris Pikul.

Hint: Alternate route:
When you get to the point where you have the option to do the Naldnick level at night using night parts, do not do so, If you do, you will have to do a very difficult city level where you must destroy blockhouses without damaging the town. Instead, do the other level you have access to. Then, do Naldnick at Daytime. You will then skip the blockhouse level altogether.
quiverfull.

Hint: Black and fire paint job:
Select the BHE tank (the only one with a body, turret, and heavy signs), then choose the urban paint job. It should be all black with fire on the front.
Alan Scott.

Hint: Blaster:
The name of the Blaster weapon is a misconception. It does not actually fire blasts. It actually launches SCUDs that deal heavy damage to opponents. Keep this in mind when you see the Blaster in a shop at one of the towns.
Jeeves.