I havent played it enough to know all the games on it, but basically, it plays sort of like a board game where you move spaces along "the strip." Depending on where you land, you play a Vegas mini game or do whatever action is on the game square. I know some of the mini games (shown on the back cover) are darts, roulette, and black jack. There is also a bingo type mini game and just general Vegas games like cards and dice.
There are a few different modes. One of them is the board game style which I have played. The others are:
Quickplay mode- basically allows you to train on a specific mini game and beat your previous scores.
Competition mode- you challenge 3 other contestants (or computer players) to a series of mini games.
Since I havent played the other modes, I really am not sure what they are like. I would encourage anyone who might want more info on them to maybe do a web search for a demo video of the game.
Hopefully that answered your question a little at least.