In order to get it you have to kill 5000 worms, but considering new all time stats, seem it count kills from the moment achievement is added, not from all time kills? As you can see in pic, stats says that I've killed over 4k worms, but in achievements it says that im at 44% of 5000:

http://www.dodaj.rs/t/3c/fJ/3IiZ3Puw/achbug5000.jpg (http://www.dodaj.rs/?3c/fJ/3IiZ3Puw/achbug5000.png)

BUMP :P

So can anyone confirm this?

Hi Towelie - yess that's sometimes the case when new Achievements are added, BUT... I know a man who might be able to fix this up for everyone, maybe. Stay tuned....

Yep, I've already coded in the fix so should be in the next live push we do!

Sweet, thanx :)