cannibalism, from what I've heard.  

I played Motor Forza 2 (or forza horizon 2?). It felt like any other racing game, only one course and 3 cars in the demo; the stingray and the aston martin both felt the same. Very  limited deni, but the rewind feature is nice. The course went through some fields, which probably isn't too good for such nice cars.

Sunset Overdrive was neat. The mission wanted you to blow up the amusment park ride cars, but I couldn't figure out how to do it. I was fighting the camera and controls and trying to figure out what weapon does what and fighting off zombies at the same time. The control overlay only showed up after you died but not on pause :{

My fave was Elite: Dangerous, a space sim with missions and such. The demo was just hunting down another ship in an asteroid field and shooting it, but you will be able to customize your ship, go on quests throughout the galaxy, and whatnot. It was funded by Kickstarter last year and is out on Dec 16. The dual flight sticks they had at the event were siick. One of the sliding buttons can be used to prioritize repairs during battle. The guy said it will only take up 4Gigs of hard drive space.

I played "Tomb Raider" and shot a rabbit in the face with an arrow. 10/10

Finally, I played Arkham Origins and made no progress and didn't know where to go or why the bad guys couldn't be killed. The fun ended when it froze up for no reason whatsoever. (also 10/10)

I didn't go inside to see what else was there because I thought it was just a restaurant/music venue. Oops..