fightingforce64

Air Base Gun
When you get to the Air Base go to the left and there should be a A-10 plane. Destroy it and a huge gun will fall out the front. It is very heavy for everyone.

Big Weapons
Car Engine -- If you completely destroy a car (ex. a bazooka shot), you can grab the car's engine. This only works with Smasher.
Airplane Gun -- On the Air Base stage, go inside the hanger and destroy the plane. After it is destroyed you will be able to use its gun.

Double Team
In the co-op mode ,when you throw an enemy or boss, the other player can hit the enemy that is being held.

Easy Money
To get more money in the game roll around the walls. Walk up to the wall and start rolling. Make sure you roll against the wall and not just by it. Money should come out. We know this sounds crazy, but it works.

Find Flare Guns
On the hovercraft stage there are two black structures on either side. Destroy those and a flare gun will drop out of each structure.

Floating Character Glitch
Play with two players, when you get to the level 2.2 (Truckdriver) Let the truckdriver pick one of you up, when he's about to throw you down have the other player knock the Truckdriver down. you'll be floating while the other player will not. it's funny but you can't get down unless you restart the game.

Level Select and Invincibility
At the main menu, PRESS and HOLD L + Z + C-Up + C-Down. This will take you to the character select screen in a few seconds. From there you may press C-Left or C-Right to choose your starting level. You will start with invincibiliy.