I have played several matches today and in all of them I am launching premature shots and damaging / killing my own worms in the process. I don't know if this is just an issue with my mouse (optical... no apparent problems with any other game) but I wonder if anyone else has this problem? It's virtually impossible to do anything right now without killing myself.

We've had no other reports of this, no. Did you find out if it was your mouse? It could possibly have been a little glitch with the internet, either our sides or your side. If it happens again please do let us know. :)

El Bobbo