Too simple. Would be cool if the moon wore down as it destroyed stuff and needed repairing. Allowing it to get bigger is stupid. A little more "realism" and it would be fun.
Just needs something else to make it more interesting. Maybe there's a certain amount of time before the bird gets tired? Maybe the levels progress from slow birds to faster birds? I don't think adding an ingredient is the way to make levels more difficult ... they're all the same, the later ones just take longer. Also, different music on each level would be nice.
Good physics and an improvement on previous versions, but still too easy. Felt like Tiger Woods until the last hole, and even then it wasn't tough enough. Maybe make the hole harder to hit, speed wise.
 "Ringmania 2"){kind=icon}
 "Tetris"){kind=icon}
 "Earth Defense"){kind=icon}
 "A Birds Journey"){kind=icon}
 "Mini PuTT 3"){kind=icon}