CLICK THE BIRD LIKE YOU MEAN IT!!!!!!! and buy things of course. Slingshots let more birds be 'clicked'. TNT adds more destruction for 'clicks'. Back-ups add more birds to be 'clicked' than slingshots. Clones add endless amounts of 'clicks'. Press space to change birds.
Credit to my school-friend, Litt3B1ll, for making this possible. (He deleted his account, now it's @PikachuMan66) Play the sequel: https://scratch.mit.edu/projects/209148216/?fromexplore=true