The main characters in the game are birds that sit on a roost. Rockets are constantly flying at them and the birds fight them by shooting them down. The player has to control the birds and help them fight the missiles. In the process, the player can collect stars, which allows them to buy new types of birds using gathered coins. There can be a maximum of two birds on the roost and it is up to the player to choose which ones will be there. Missiles can fly from below as well as above.