This is a classic side scrolling shoot 'em up helicopter game. The goal of the game is to complete the mission objective to unlock the next mission and get a high score. You can post your scores to a Facebook leader-board to share and compete with your Facebook friends for high score.
Pick a difficulty level and mission. Use the up and down buttons to position the chopper and the shoot and rocket buttons to destroy the enemy vehicles and buildings. The less rockets and chopper lifes you use the more bonus points you get.