Green Beret/Gameplay

Controls

 * Joystick / : Use the joystick or direction pad to control the player. Press left or right to make the player run in either direction.  Press up or down whenever the play is in front of a ladder to climb up or down.  Otherwise, press down to make the player flatten down along the ground, or press up to make the player jump.  Press in either diagonal upwards direction to jump either way.
 * Weapon or : Press this button to make the player stab with his machete. You can stab repeatedly at any time, whether you are standing, crouching, or jumping.  However, you will stop running momentarily when you stab.
 * Shoot or : Press this button whenever you are equipped with a special weapon, such as a flame thrower, bazooka, or grenade, and wish to use one instance of it. Once you run out of ammunition, the special weapon will disappear.
 * 1 or 2 Players or : Press these buttons to begin a game. Also on the NES version, press Start to pause the action mid-game
 * : Used to choose between a one or two player game on the NES version.

''Note: The control scheme on the Game Boy Advance conversion was changed. is jump, is stab, and  is the special weapon button.''

Player
You control the player, an unnamed member of the American Green Beret forces, throughout the game. Your objective on every stage is to make it from the beginning location on the left end, to the location of the final stage battle on the right end. You can run in either direction, climb up and down ladders, lay low to the ground, jump straight up, or jump diagonally. You can stab forward with your machete at any times, and this is your primary means of attack. Occasionally you can obtain special weapons from specific enemy soldiers which, when collected, grant a limited amount of ammunition for you to use (usually three or four uses) before the supply is exhausted. You begin the game with a number of lives (typically 3 in the arcade, 5 on the NES port) and you will lose one every time you are touched by an enemy or their bullets. In order to stay alive, you must attack and defeat or jump over every enemy obstacle. Extra lives will be awarded for accumulating a certain number of points. (In the arcade, this can be set by the operator, but it is typically at 50,000 points, 100,000 points, and every 100,000 points there after.)