The controls are given to you before you begin the game, and simple enough for anyone to learn or use.
You fire with the Shift key, and shoot missiles with the Control key. The spaceship you control is moved left or right with the left and right arrow keys (or the A and D keys). Similar to the gameplay, the controls are fairly simple. You cannot adjust or change the difficulty settings in Chicken Invaders. There will be more chickens to eliminate, and more asteroids or eggs to dodge as you progress. Once you complete the ten waves, they start over from the beginning and become more difficult than before. The final wave contains a single large chicken invader, and is the boss encounter. Some waves have you destroying the chicken invaders (who are organized in different formations throughout), while others have you dodging deadly asteroids heading straight for you. There are ten different waves you face in Chicken Invaders. You repeat your actions on wave after wave until you finally lose all three lives and the game ends. When destroyed, the chickens drop a drumstick you can collect for bonus points, or a present that will award you powerups and points.
If you get hit by an egg, you lose one of your three lives. However, you'll have to be quick and alert to dodge the eggs they drop. The enemies sit at the top of the screen, and its your job to eliminate them. You control a spaceship at the bottom of the screen that can be moved left or right. The gameplay at the heart of Chicken Invaders is very similar to other arcade shooters.
Goofy graphics and sounds add an interesting touch to the good arcade gameplay. You can face the task alone or play with a friend. You'll take on increasingly difficult waves of chickens and asteroids that threaten to destroy Earth. Chickens are invading Earth and it's your job to pilot a spaceship to take them out and save the world. Only you can make a difference.Chicken Invaders is a strange new twist on the classic Space Invaders style arcade game. The time has now come to don your non-stick egg-repulsing helmet and make the biggest omelette you've ever made as you continue your adventure in the second chapter of Chicken Invaders: The Next Wave. Will you succeed? Will the future of chicken burgers be secure? Or will you end up as part of the menu in a galactic chicken restaurant? However, as you were clearing out the last of the chicken invaders and were looking forward to a double chicken burger special at the space burger bar, the true scale of the problem became apparent: the first invasion was simply a precursor to the chicken's main assault! Their master plan now becomes clear: to invade each planet in the solar system and make sure that it is inhabited exclusively by chickens! In the first chapter of the Chicken Invaders saga, you defended earth against an invasion of intergalactic chickens seeking revenge for the oppression of their earthly brethren. Fast-paced arcade action for one or two players. Save the solar system from invading chickens! Just when you thought it was safe to eat chicken again, the chickens have returned with an organized invasion to take over the entire solar system! Journey to each planet and fight your way through to save the world (again)! Advance through waves of invading chickens, avoiding falling eggs and collecting power-ups to boost your spaceship's firepower.