Konami had a very interesting little DSiWare platformer called Reflections at their booth. In the game, the top screen displays what appears to be your average platform game while the bottom screen displays a mirror image of that world and your playable character Kira.
Reflections on the epic intergalactic sexcapades of Mass Effect titles past.
Word around the campfire is that if you have enough sex with a certain female character, good facial animations will be born.
This Oculus Rift title will be at the event for all of the four days.
After playing through Reflections my first time through, I'm fairly certain this is the best-worst game I've ever played. It made me think about life in a deeper way, but I also loved playing it. Just as a warning, there are spoilers in this review.