This game is really challenging and pretty fun, but none of the achievements were hard, the impossible was more of a medium badge, because I got it in less then 30 minutes. To beat all the levels in this game I had to use a guide, but once I knew all the levels, I beat them in an instant. Still I'm not going to down-rate this game by it's badges, I'll give this game a 3/5. Thanks for uploading such a game, one of the best puzzle games on this site.
 "Super Stacker 2"){kind=icon}