We went to the one outside of chicago. There were many more games than the website indicated there would be. Mostly everything was Sega machines. But they also had Nintendo machines and various retro machines. There were mostly shooter games, racing games, and fighting games.
We had a lot of fun. And all the food and gaming didn't even set us back too much
My wife and I were basically stuck on House of the Dead 4 for the majority of the time we were gaming, so I didn't get a chance to scope everything out too well. But we plan on going back soon!