Word Rush is a tournament game mode (accessible from the Tournament Lobby) where you have a limited amount of time to guess as many words as you can for the highest score. 6 letters are presented to you, each worth a different amount.

 

You can make 2 to 6 letter words and submit the word for a point score. The remaining letters are then refreshed with a new set of letters and you again try to submit a new word with the options presented. Use all 6 letters and get a Perfect Score! Final scores are added to the leaderboard.

 

So let's see how quick you are!