Those were pretty easy badges to get relatively speaking. Got all 4 with about an hour's play. To kill spotters take two planes and first turn get close enough to just start shooting, second turn go as slow as you can, they should die before you get within gun range.
I used to like this game before I got the impossible badge. Actually the game is pretty fun, aside from the power up that gives you an extra ball. That is just terrible, because it's almost impossible to not lose one if you have two flying around.
Wow that took forever. For those of you quitting after 4 levels, yeah it is a little repetitive, but there are a ton of powerups after that that make it interesting
 "SteamBirds"){kind=icon}
 "Orbular"){kind=icon}
 "Areas"){kind=icon}
 "Balloon in a Wasteland"){kind=icon}
 "Death vs. Monstars"){kind=icon}
 "Learn to Fly"){kind=icon}