Challenge Birds is a game for fast finger tap skills along with eye co-ordination. This game has 2 modes as classic Mode with 1 bird life and Extended Mode with 3 Bird lives to finish the game.Classic modeIn this mode of the game, 12 birds are placed on the screen. Whenever the player taps on start button the birds are started flapping the wings randomly and the player has to tap on the bird which is flapping its wings. If the player can tap the bird before flapping completion the game will continue that means the another bird starts flapping its wings, player can tap that bird also and it continues till player failed to click the bird before it finishes flapping. One point will be counted for every successful tap on the bird.At the time of completion of the game, Screen will be shown to insert the name of the player, which will be saved and displayed under High Scores screen which is available from main menu.Extended modeIn this mode, playing instructions are same as Classic Mode, However in this mode player will have 3 Bird lives before the game finishes. The 3 lives will be shown on screen as 3 birds and for every life loosing, will disappear 1 bird.