If you don't get the Planet vs. Zombies Badge and you're sure you destroyed enough locations, try refreshing and then loading your save file. That's how I was able to get the badge.
Sad how amazing the first two games of this series are, but then we wait so long for Sonny 3 and it's like a major downgrade compared to them. No attack animations and you have to buy it on steam. Such a sad end for this series.
So are the Scarab powers just completely random? Plus some Scarab powers that I don't have upgraded happen. (unlocked) I don't really know how else to say it. But man this game is fun! Plus I love getting the hats!
 "The Tickler"){kind=icon}
 "Infectonator 2"){kind=icon}
 "TDP4 Team Battle"){kind=icon}
 "Epic War 3"){kind=icon}
 "Endless War 6"){kind=icon}
 "Mud and Blood 2"){kind=icon}
 "Sonny 2"){kind=icon}
 "Elements"){kind=icon}
 "Flappy Bird Flash"){kind=icon}
 "The Everloom"){kind=icon}
 "Road of the Dead 2"){kind=icon}
 "Whack the Thief"){kind=icon}
 "Treadmillasaurus Rex"){kind=icon}
 "Sagittarian 4: Berger"){kind=icon}
 "Snailiad"){kind=icon}
 "FPS-MAN"){kind=icon}
 "Cat God vs Sun King 2"){kind=icon}