Sierra turned up at the MCM Expo in London over the weekend, showing off Ghostbusters and putting up a giant Stay Puft Marshmallow Man to promote the game.

As you can see, our inflatable friend was a whopper. Unfortunately, the game itself wasn't playable, and was only being shown on a screen at Sierra stand, but iconic Ghostbusters car Ecto-1 was on show, so that's fine. We'll add pictures of that in a sec.

We also got to talk to actor Ernie Hudson as well, which was pretty much amazing. We'll be posting news from the interview throughout the day.

Click through for Stay Puft.