Videogamer writes: "There's nothing quite like a day out at the zoo: going to see the elephants, watching the penguins being fed, and then a quick visit to the monkey house. Maybe you'll make a quick stop for an ice cream on the way out. Oooh, lovely! But every once in a while, something comes along to spoil your weekend treat: bad weather, perhaps, or an unexpected hike in entrance prices. Or a massive, bloody gunfight between heavily-armed mercenaries."