Spiderwick Chronicles

During the levels which you play as Thimbletack you'll see a number of cockroaches scurrying around, for this achievement you need to kill 10 of them, given that there are a total of 50, this is relatively easy and you'd be able to just pick 10 off as you went, however as there is also an achievement for killing 25 of them and another for killing all 50 of them you'll be better off following a guide to ensure you don't accidentally miss one.

I've linked in a video guide because in my experience it's always easier to follow a video then it is to follow a list.

*^{Credit to keungz for the videos}

You have to kill 10 cockroaches for this achievement. This can only be done as Thimbletack. I found this link to a walkthrough of the spots where the cockroaches can be found.
Credit goes to Scotian Bred for making this list.
http://www.xbox360achievements.org/forum/showthread.php?t=57...