It was not what I expected. The screens showed footage from the games as the orchestra played, and I was staring at it so hard that I nearly didn't notice the guy in black ops gear get on stage, or the white box, or Master Chief.
Pity poor Dave, who only had two space invaders left to shoot, in order to win an awesome retro game cabinet. Cheers to the other guy, who played guitar hero on expert mode, when he only was supposed to do hard.
And please Squeenix, give them permission to use footage from your games. The cosplay pics were cool, but there was nothing to show off Chronotrigger and you did make an OAV for it.