The minimum score required in River Raid II by Activision for the Atari 2600 to earn a patch was: No patch was ever offered in River Raid II. The best advice in River Raid II is to read the manual, so that you know all of the nuances of the game. The manual gives some really good tips. Make sure both difficulty switches are set to B. Activision River Raid II starts off where the previous version left off. River Raid II is the original River Raid plus much more. This is a one or two player game. In the two player selection you must wait for player one to complete his turn. The joystick controls are as usual, left or right to bank the plane in that direction and up or down to increase or decrease the altitude of the plane. The button controls the choice of fire. To shoot flying enemies just press the button and you'll fire a missile. To shoot enemies on the ground or to blow up the bridge, press the button and pull back on the stick to drop torpedoes. The A/B difficulties in this game make a huge difference in game play. Difficulty "A" is the expert setting where the missiles are unguided and the torpedoes shoot straight. On difficulty "B" setting, the Novice position, you are able to guide the missiles and torpedoes with the joystick after firing. As you take off from the carrier, the mission is to destroy everything in sight. Refuel by flying over the gold refueling planes. You can also refuel by flying over floating buoys in the water. There is a warning sound that sounds once fuel gets low. But in such an action packed game I'm sure one will keep an eye on those alert gauges. If you do happen to run out of fuel, the plane will crash and a reserve plane is lost. In the middle of the lower part of the screen is the radar map. This is where progress is shown, and the yellow square indicates where the plane is located. The distance and location of the bridge is also shown by a yellowish flashing square which scrolls with the movement of the land. Below the map are the Altitude, Fuel, and Speed. All are indicated by yellow and when they are depleting they change to red. The reserve planes are also indicated below. Once in the air, the thrust indicator will be replaced by an altimeter. To fly higher, pull back on the joystick. To decrease altitude, push forward. You must be vigilant about keeping an eye on the altimeter, because if you fly too low and are over land you will crash. There is an indicator that flashes red if you are precariously close to the ground. There is plenty going on in this game. The enemies are helicopters, fighter jets, and flak bursts, so avoid contact with any of these. You can shoot down the helicopters and jets, but the flak cannot be destroyed, so fly clear of them. Points are awarded depending on the enemies that are hit. Blowing up the bridge is the most points awarded at 2500. To land on the carrier, pull the joystick back to reduce altitude and hold down the button. The altimeter is again replaced by the thrust bar. Increase thrust until you reach the aircraft carrier. As soon as you are over the carrier, release the button and push the joystick forward to land the plane. The game is over if you lose all of your reserve planes. Once you land on the aircraft carrier, you can either start a new game or continue the game that you are currently playing with a more difficult and expert mission. When you are ready to submit a world record score for River Raid II by Activision, check the scoreboard: https://www.twingalaxies.com/game/river-raid-ii/atari-2600-vcs/ntsc-game-1-difficulty-b/page/1