Sefer.9618

Nope. I either smash them or throw a rock, but some just won't fall over/disappear/get destroyed/whateveryouwannacallit... When did you do it? There are many achievements which were possible after release and are bugged now... Will try it again today doubt it works :-)

For this achievement you are supposed to hit every bonus target in a single attempt. The problem is that some targets (not always the same) won't get triggered/"destroyed" so they won't count towards this achievement and make it impossible to complete it.