If you havent played worms...where have you been.
It was simply one of the best games on the Amiga, and is still a classic today.
With Worms: Open Warfare, they have tried to add some 3d grahpics, few new weapons etc, but its really still the same old amiega game, and thats not a bad things.
However now you can play online via WiFi which adds another fantastic element.
Only things that slightly annoys me is the camera angle, but its only a minor gripe, and for the price of £10, you cannot go wrong!