Britney's Dance Beat is a decent Rhythim game that can be enjoyed by anyone who likes this genre and Britney music.
The way this game differs from games like Dance Dance Revolution is you can enjoy it when you play it with a regular controler. When you make combos you will affect the other player roulette display and more combo you make, more it will difficult to your friend to stay in the rhythim. This make a good challeng and it is fun to play.
The big problem with this game is that only offers 5 tunes form Britney, yes theses songs are some of her best songs and they are pretty enjoyable to play in this game but its simply not enough. The other big problem is also that the game doesnt have many unlockables and can be finished at 100% in a single day.
Beside that, this is a decent rythim game that can be enjoyed by everyone who like this kind of game and music. This is probably the "best" game based on a artist available so far.