Lol, getting every achievement is tiring. The reward you get (apart from the 30 points) is really random.
Overachiever Badge (hard – 30 points)
Earn all 15 achievements in Hanna in a Choppa
* 15 achievements completed Best so far: 13.
to get the card you have to climb up the tower. And when you see the window with earth in the background, wait there and you should see the hedgehog go by. Then finish the game and you should get the card.
 "Interactive Buddy"){kind=icon}
 "Factory"){kind=icon}
 "Rings"){kind=icon}
 "Hanna in a Choppa"){kind=icon}
 "99 Bricks"){kind=icon}
 "Storm the House 3"){kind=icon}
 "The irRegularGame of Life"){kind=icon}
 "Wolf Games Apple Shooter"){kind=icon}
 "SHIFT 3"){kind=icon}
 "MindFeed"){kind=icon}
 "Ladybug"){kind=icon}
 "Shootorial #3"){kind=icon}
 "Microbe Kombat"){kind=icon}
 "Color Infection"){kind=icon}
 "Battalion: Nemesis"){kind=icon}
 "Balance Balls 2"){kind=icon}