Uno Rush Screenshot
The classic game of Uno became an instant hit when it hit the Xbox Live Arcade when it was released three years ago. Uno Rush takes the core concepts of the original and gives it a few extra twists to mix up the played-out gameplay.

The largest change in the new game is the ability to play as many cards as possible during your turn. You'll be given a time limit each turn, so if you can manage to chain together the right colors and numbers, you can come out victorious before any of your other opponents even have a turn. How it works is that you will be constantly shuffling around your cards while your opponents are going. This is because the game will always take the top card off of your deck to discard on the community deck. Oh, did I mention that everyone's cards are shown? All this adds up to some quick gameplay that will keep you on your toes, especially when there are challenging of calls.

There are three modes in the Uno Rush: Standard, Partner, and Elimination. Each mode has rules that can be modified to create the exact Uno experience that you're looking for. No official date has been set for Uno Rush, however, it is said to be only a few weeks off.

Source: IGN: Uno Rush Preview