Birdie is a game with a large number of levels through which you will have to get in order to achieve the high score that you want to post. There are exactly 100 different levels in which you can engage and all of them are nice to get through. However, as you progress through the game you will find it more difficult to solve the levels.
In the game you will control a bird, hence the name of it, and you will be able to throw musical notes at your enemies in order to stun them. After you do this you will also be able to catch them.