|Twin Eagle II is a vertical scrolling shooter where one or two players pilot heavily armed helicopters through three stages with three areas each.|
At the start of each stage, the players select their path of attack through the three areas. Areas with ground level enemies and targets are presented in a 3/4 isometric view, while areas with no ground targets feature scrolling landscape images. Players use their guns to attack flying enemy aircraft and bombs to attack ground targets such as tanks, rocket launchers and high-rise skyscrapers. If things get too hairy, the player can use a missile barrage to clear the screen of enemies and enemy firepower. Destroying some buildings reveal primary colored trucks which drop weapon power-ups and point items when destroyed. Each area features a boss at the end, which must be destroyed to advance past the area. The final stage features one additional boss before the end of the game.
Game description from www.arcade-history.com