Color Rush is an addicting game from Under Clouds games. You start in the lower left corner, and the iPhone starts in the upper right corner. Your gems are white and the iPhone’s gems are black. Touch the colored gems from the bottom that are touching any of your gems (white ones) to expand your field. Your job is to capture all of the color gems. Grab more than half of crystals to win. Watch out for those black gems! They grow very fast.

There are two levels: easy or hard. The game also has an online score board where the top players are listed. Try with TestiPhone