Pump Up The Birds is a very fun casual game. The important struggle in the birds' world determines who is the most powerful. What is the rule of competition? When different birds collide with each other, the larger one will win, so you need to click on the bird constantly to inflate it and become bigger. This game is full of fun and testing your reaction skills. All you have to do is keep clicking. Come and challenge this game! Have fun with it!

How to play: Use the mouse to play.