Are you looking for straight action relax game? One candidate is right here. The aliens are occupying the city where one brave mother lives. She grabs a weapon and from this moment you can enjoy few-minute-shooter game. Walk through the city and shoot everything in your path. Whenever you can, take better weapon. The number of lives is limited and you cannot get any first-aid kit. The game isn't too difficult but with every new level the difficulty increases. The graphics isn't special but what a great tempo and cadence.