I dreamt I was staying at someone's large and modern house, and the room I was allocated had a bunch of toys and books and things. A military agent of some kind turned up to visit me in the morning, which I was expecting. He wanted to talk top secret stuff outside, but I was still finishing eating my cereal so I said I'd be out in a minute. When I got outside, things turned into a game of 3D Worms. Grenades and dynamite were being thrown around. I walked my worm up a narrow castle-ish wall which had appeared around the front yard of the house, and fired a weapon I thought was a grenade launcher down at either the agent or the owner of the house, although it seemed more like a bazooka. Someone else triggered a weapon that caused the wall my worm was standing on to collapse.