A few days ago Google released a new version of the Google Play Services. This library is automatically pushed to Android devices. Unfortunately, this release causes crashes on HTC devices with Android 4.0.x. I just updated Blocks Breaker with workaround. Google Team is already investigating this issue (it was marked as high priority ). So, hopefully, it will be fixed very soon. Other devices shouldn't be affected.
In the meantime, if you have HTC device with Android 4.0.x please update Blocks Breaker game. This is a quick release and more gane changes (yep, already promised World 3 :)) will be added in the next release :)
I am sorry for that, thank you, and best regards!