the play station games are only in the booths on the bar side (used to be smoking), it is a seat yourself, first-come first serve section; people can get vicious at busy times (like Sunday football!). You rent the controllers in the gift shop and have to leave your license or room key with them. There is another section (left side of restaurant) that has a line you wait on to be seated (you don't give your name and sit down like a regular restaurant, you have to stand in line until there's a table available).
As far as it being busy on a Friday night, it depends on what time of year and if there's any big sporting events happening. For example, if you're going during the March Madness college basketball tourney time, it may be really crowded.